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I Tried s Frontend Master’s Complete Intro to React Course and It's Awesome !!

2026-05-06T08:16:10.410-07:00

credit — frontend masters

Hello guys, if you want to learn React.js then online course is one of the best resource to start learning. They are easy to follow and also give you a good start instead of books and tutorials which are either hard to pick or incomplete.

But, with online courses, the real problem is finding the right course as internet is full of low quality, outdated, and not so accurate courses. That’s where you need to check the recommendations.

Now, if you are looking for best online course to learn React.js then you have come to the right place.

In the past, I have shared best React courses, books, websites, and projects, and today, I am going to review one of my favorite and popular Intro to React course form Frontend Masters.

If you are learning web development then you may have come across Frontend Masters, one of the best website when it comes to producing high-quality courses. I found then a couple of years ago and since then stick with them.

While they are bit expensive ($390 per annum) but their high-quality courses and expert instructor make up for it.

By the way, you don’t need to worry now as Frontend Masters is offering $100 off their yearly membership during their Knowledge Quest Sale.

This is your chance to access over 200+ premium courses, guided learning paths, and new platform features, all at a fraction of the cost.

Whether you want to master JavaScript, React, or DevOps, now’s the time to join and level up your skills.

Coming back to the topic, React.js has become a cornerstone of modern web development, enabling developers to build dynamic and interactive user interfaces with ease.

Frontend Masters offers a comprehensive React.js course titled “Complete Intro to React, v8” by Brian Holt which not just covers basic React stuff like Component, Stuff, rendering but also hooks and other React libraries.

In this review, we’ll delve into the course content, structure, and learning outcomes to assess whether it’s worth investing your time and resources.

The Complete React Course: Build a Pet Adoption App with Hooks, Effects, and More!

Learn to build real-world apps with modern React 18.x+. You'll use the latest React features to build a complete app…

bit.ly

Is Complete Intro to React, v8 by Brian Holt on Frontend Master’s Worth it

So, let’s start with the review. We will review the course in a couple of parameters like instructor expertise, course quality and curriculum and production quality like audio, video and engaging delivery or not.

1. Instructor expertise

This course is created by Brian Holt, an expert web developer with solid knowledge of JavaScript and React.js.

Brian is currently working as a product manager on Streamlit at Snowflake and he’s all about developers, developers, developers.

Previously he was a JavaScript engineer at Netflix, Microsoft and Reddit. You can see from his experience that he knows his stuff and that shows in his teaching.

He not just talk about the concept he will you how and where to use and that’s evident even in the preview video which you can watch for free.

Course Overview

The “Complete Intro to React, v8” course on Frontend Masters is designed to provide developers with a thorough understanding of React.js, covering essential concepts, advanced features, and practical applications.

Taught by Brian Holt, a seasoned developer with expertise in React and web technologies, the course takes participants on a journey from basic React concepts to building real-world applications using the latest tools and techniques.

Key Learning Paths and Topics:

Setup & Tooling: Participants learn how to set up a development environment for React.js projects, including configuring npm, ESLint, Git, and Vite. Practical demonstrations and Q&A sessions ensure participants grasp the setup process effectively.
Core React Concepts: The course covers fundamental React concepts such as JSX, state management with useState hook, effects with useEffect hook, and component composition. Participants gain hands-on experience in building interactive components and managing application state efficiently.
React Capabilities: Participants explore advanced React capabilities, including React Router for client-side routing, React Query for asynchronous state management, and performance optimization techniques. Practical examples and code demonstrations illustrate how to leverage these features in real-world scenarios.
Special Case React Tools: The course delves into special case React tools such as error boundaries, portals, and context. Participants learn how to handle errors gracefully, create modals using portals, and manage application-level state with context effectively.

Here is the link to join this course — “Complete Intro to React, v8”

Course Structure and Delivery

The course is structured in a logical progression, with each module building upon the concepts covered in previous sections.

Brian Holt’s teaching style is clear, concise, and engaging, making complex topics accessible to learners of all levels.

Let’s check out the table of content to see the flow of content and how structured it is:

Press enter or click to view image in full size

You can see that it start with basic and also teach you how to setup your own environment.

It also cover core React stuff in great detail:

Press enter or click to view image in full size

And, you will also learn about tools, framework, and router

Press enter or click to view image in full size

and more tools

Press enter or click to view image in full size

Overall a lot of detain, in-depth coverage, hands-on coding exercises, live demonstrations, and interactive Q&A sessions foster an immersive learning experience, enabling participants to apply their newfound knowledge effectively.

Pros:

Here are things I liked about this course:

Comprehensive Coverage: The course covers a wide range of React topics, from basic concepts to advanced features and best practices, providing participants with a comprehensive understanding of the framework.
Practical Application: Participants build a complete application to browse adoptable pets throughout the course, applying the concepts learned in a real-world project. This practical approach enhances learning outcomes and reinforces theoretical concepts.
Experienced Instructor: Brian Holt’s expertise and industry experience shine through in his teaching, offering valuable insights and practical tips to participants. His clear explanations and hands-on demonstrations make complex topics digestible and actionable.
Latest Tools and Techniques: The course incorporates the latest tools and techniques in the React ecosystem, including Vite, ESLint, TailwindCSS, React Router, and React Query. Participants gain exposure to industry-standard tools and best practices, enhancing their skill set and employability.

Cons:

Nothing is perfect, while its a great course, there are few things which can change your decision to join the course:

Time Intensive: With a runtime of 5 hours and 50 minutes, the course requires a significant time commitment from participants. Some learners may find it challenging to allocate sufficient time for completing the entire course in one sitting.
Limited Interaction: While the course offers valuable content and demonstrations, interaction with the instructor and fellow participants is limited to pre-recorded videos. As a result, collaborative learning opportunities may be limited compared to live or interactive courses.

Conclusion:

Overall, the “Complete Intro to React, v8” course on Frontend Masters offers immense value for developers seeking to master React.js and build scalable, interactive web applications.

With its comprehensive coverage, practical application, and experienced instructor, the course equips participants with the knowledge and skills needed to succeed in today’s competitive web development landscape.

Whether you’re a beginner looking to learn React from scratch or an experienced developer aiming to level up your skills, this course is definitely worth considering as part of your learning journey.

All the best with React and web development journey !!

If you want to do just one thing, go and join this couse on Frontend Masters

The Complete React Course: Build a Pet Adoption App with Hooks, Effects, and More!

Learn to build real-world apps with modern React 18.x+. You'll use the latest React features to build a complete app…

bit.ly

Other Frontend Masters Articles you may like to read

Thank you for reading this article so far. If you like these frontend masters courses and my review then please share with your friends and colleagues. If you have any questions or doubts then feel free to ask.

P. S. — If you are keen to level up your frontend skills then you should join frontendmasters.com. They are also offering $100 discount on their Frontend Master Knowledge quest sale, so, if you want to join now is the best time.

I Found LeetCode for Software Design and It’s Awesome

2026-05-05T06:40:38.783-07:00

Hello guys, If you’re preparing for FAANG interviews, you already know that Data Structures & Algorithms (DSA) and System Design are the two critical areas where you’ll be tested rigorously.

While LeetCode has become the standard platform for DSA practice, system design preparation has always been fragmented — scattered across expensive courses, text-heavy articles, and YouTube videos with no hands-on practice.

While there are many websites and platforms to prepare for System Design Interviews like ByteByteGo, DesignGurus.io, Exponent, Educative, and Udemy, there is nothing like LeetCode, where you can practice the real, interview like system design problems online and also get evaluated.

That changed when I discovered BugFree.ai.

Master System Design & Behavioral Interviews Like Leetcode

Prepare for software engineering interviews with 150+ system design and 30+ behavioral questions at bugfree.ai. Get…

www.bugfree.ai

After using it to prepare for my recent FAANG interviews, I can confidently say: BugFree.ai is the LeetCode for System Design — and it’s exactly what the interview prep landscape has been missing.

If you’ve struggled with structuring system design answers, getting real feedback, or knowing whether your approach matches industry standards, BugFree.ai solves all of these problems.

Why System Design Needs a Platform Like LeetCode or BugFree.ai?

Most system design resources today fall into one of these categories:

1. Long, Text-Heavy Courses

Passive learning with no hands-on practice
You read about designs but never actually create them
No way to validate your understanding

2. Expensive Mock Interview Platforms

$200–500 per session
Limited feedback
Not scalable for comprehensive preparation

3. YouTube Videos and Blog Posts

Fragmented information
No structured progression
No evaluation of your solutions

The fundamental problem: Reading about system design isn’t enough. You need to actively design solutions and get expert feedback on your approach.

This is where BugFree.ai changes the game completely.

What Makes BugFree.ai Special?

Instead of passive learning, BugFree.ai provides an interactive, hands-on, and AI-powered approach to mastering system design. Here’s what sets it apart:

1. Real-World System Design Problems with Interactive Practice

BugFree.ai offers a comprehensive collection of system design problems structured exactly like LeetCode presents DSA problems — but for architecture and design.

Example: Design URL Shortener

You work through:

Functional and Non-Functional Requirements
Capacity Estimation and Constraints
API Design and Data Models
High-Level Architecture
Deep Dives into Critical Components
Scalability and Trade-offs

The difference: You don’t just read about URL shorteners — you actually design one step-by-step, with guidance and validation at each stage.

Built-in Drawing Tools:

Just like in real interviews, you get access to an interactive whiteboard where you can sketch architectures, draw component diagrams, and visualize data flows

Here are some of the popular System Design questions you can solve on Bugfree.ai for practice:

2. Difficulty-Based Categorization (Just Like LeetCode)

BugFree.ai categorizes problems by difficulty level, making it easy to progress systematically:

Easy — Foundational concepts:

Load Balancing
Caching Strategies
Message Queues
Basic API Design

Medium — Real-world scenarios:

Rate Limiting Systems
Search Autocomplete
Real-Time Chat Applications
Notification Systems

Hard — Complex distributed systems:

Design YouTube/Netflix
Distributed Databases
Cloud Storage Systems
Microservices Architecture
Design Web Crawler

Each problem includes company tags showing which FAANG and top tech companies ask them, so you can focus your preparation strategically.

3. AI-Powered Coaching and Feedback

This is where BugFree.ai truly shines — AI-assisted learning that feels like having an expert mentor available 24/7.

How it works:

Smart Hints: Stuck on a problem? The AI provides hints without giving away the answer.
Design Evaluation: Submit your design and get automated feedback on scalability, reliability, and best practices.
Industry Standards: Your solution is evaluated against real-world architectural patterns.
Interactive Q&A: Ask questions about your design decisions and get immediate clarification

This bridges the gap between self-study and expensive coaching — you get expert-level feedback at a fraction of the cost.

4. AI-Powered Mock Interviews

Here’s the feature that sets BugFree.ai apart from every other platform: AI-driven mock interviews.

The Problem with Traditional Mock Interviews:

Expensive ($200–500 per session)
Limited availability
Inconsistent interviewer quality
Can’t practice as much as you want

BugFree.ai’s Solution:

Unlimited mock interviews powered by AI that simulate real FAANG interview conditions:

Realistic Interview Experience: Timed sessions with ambiguous requirements (just like real interviews).
Follow-up Questions: AI interviewer asks probing questions about your design decisions.
Performance Evaluation: Detailed feedback on communication, technical depth, and trade-off analysis.
Unlimited Practice: Take as many mock interviews as you need to build confidence

Example: Web Crawler System Design Mock Interview

The AI interviewer guides you through designing a web crawler, asks follow-ups about politeness policies, distributed crawling, and URL deduplication — exactly like a real interview.

My experience: After 10+ mock interviews on BugFree.ai, my real FAANG interview felt comfortable. I’d seen the patterns, practiced the communication, and knew how to structure my answers.

5. Object-Oriented Design (OOD) Practice

System design isn’t the only thing tested at FAANG. Object-Oriented Design (Low-Level Design) is a critical round, especially for senior roles.

BugFree.ai covers this comprehensively:

Classic OOD Problems:

Parking Lot System
Elevator System
ATM Machine
Library Management System
Hotel Booking System
Vending Machine

What you get:

Step-by-step class design guidance
UML diagrams and relationships
Design pattern applications
SOLID principles in practice
Trade-offs between different approaches

If you’ve struggled with OOD interviews (many developers do), this is invaluable preparation.

You can see all the OOD problem here.

6. Resume Analysis and Optimization

Here’s an unexpected bonus: AI-powered resume review.

Upload your resume and get:

ATS optimization — Make sure your resume passes applicant tracking systems
Keyword suggestions — Align with job descriptions for roles you’re targeting
Formatting feedback — Professional structure and readability
Content improvements — Stronger bullet points highlighting impact

Why this matters: Your resume gets you the interview. BugFree.ai helps you get past the first filter.

Resume Builder for Software Engineers — AI-Powered Optimization

Create and optimize your software engineering resume with AI-powered insights. Get personalized feedback, ATS-friendly…

bugfree.ai

Getting Started: My Recommendations

If you’re completely new to system design:

Week 1: Easy Problems

Start with URL Shortener
Focus on understanding the framework
Don’t worry about perfect solutions
Get comfortable with the platform

Week 2: Build Fundamentals

Solve 3–4 easy problems
Learn capacity estimation
Practice API design
Understand database selection

Week 3: Medium Problems

Tackle real-world scenarios
Focus on scalability patterns
Learn caching strategies
Practice load balancing

Week 4: First Mock Interview

Take your first mock interview
Don’t expect perfection
Learn from the feedback
Identify gaps in knowledge

Then: Continue cycling through problems, mock interviews, and focused learning in weak areas.

What I Wish I Knew Before Starting

1. Don’t Skip the Easy Problems

Even if you’re experienced, start with easy problems. They teach the framework for approaching system design that applies to harder problems.

2. Mock Interviews Are Essential

Solving problems alone isn’t enough. Mock interviews teach:

Time management (45–60 minute constraints)
Communication under pressure
Handling ambiguous requirements
Explaining trade-offs clearly

3. Review Community Solutions

After solving a problem, always check how others approached it. You’ll discover patterns and optimizations you missed.

4. Focus on Communication

System design interviews test communication as much as technical knowledge. Practice explaining your thinking process clearly.

5. Use the AI Feedback

Don’t just collect problem checkmarks. Study the AI feedback carefully. That’s where real learning happens.

The Bottom Line: Is BugFree.ai Worth It?

After three months of intensive preparation using BugFree.ai, here’s my honest assessment:

What BugFree.ai does exceptionally well:

Hands-on practice — Actually design systems, don’t just read about them
AI-powered feedback — Get expert-level guidance on every design
Unlimited mock interviews — Practice as much as you need
Structured progression — Clear path from beginner to expert
Cost-effective — Fraction of traditional mock interview costs
Comprehensive coverage — System design + OOD + resume help

What could be improved:

⚠️ Human interaction isn’t quite the same (supplement with 1–2 human mock interviews)
⚠️ Community features could be stronger (though improving)

My verdict:

For system design interview preparation, BugFree.ai is the most effective platform I’ve found. It’s truly the LeetCode for system design — combining structured practice, expert feedback, and unlimited mock interviews in one place.

The ROI is obvious: The platform costs less than one traditional mock interview session but provides unlimited practice and comprehensive preparation.

Start here: BugFree.ai

Master System Design & Behavioral Interviews Like Leetcode

Prepare for software engineering interviews with 150+ system design and 30+ behavioral questions at bugfree.ai. Get…

www.bugfree.ai

Final Thoughts

System design interviews are intimidating, but they’re also learnable and masterable with the right approach.

What doesn’t work:

Reading endless blog posts without practicing
Watching YouTube videos passively
Hoping to “wing it” in interviews
Paying for expensive mock interviews you can’t afford to repeat

What works:

Structured hands-on practice
Regular feedback on your designs
Mock interviews simulating real conditions
Systematic improvement over time

BugFree.ai provides all of this in one platform.

After using it to pass FAANG system design interviews, I can confidently say: this is the platform I wish had existed when I first started preparing.

Don’t make the same mistakes I did — scattered preparation across fragmented resources, expensive one-off mock interviews, and no systematic way to validate improvement.

Start practicing on BugFree.ai today. Your future self (and your compensation package) will thank you.

Other System Design Resources You May Find Useful:

P.S. — I used BugFree.ai while working full-time. The focused, interactive practice was far more effective than months of random article reading. Share this with engineers preparing for senior roles.

Ready to start? Visit BugFree.ai and begin your system design journey today.

Master System Design & Behavioral Interviews Like Leetcode

Prepare for software engineering interviews with 150+ system design and 30+ behavioral questions at bugfree.ai. Get…

www.bugfree.ai

I Tried 50+ System Design Online Courses: Here Are My Top 10 Recommendations

2026-05-04T07:07:46.971-07:00

image_credit — Educative

Hello guys, if you are preparing for technical interviews for Software Engineering job then you may be aware of the importance of Software Design or System design topic.

It is one of the most important but at the same time very tough topic to master and many programmers even experienced developer struggle to solve System design problems during interview, particularly while interviewing with top tech companies like Google, Meta, Amazon, Apple, Microsoft, Netflix etc, popularly known as FAANG.

If you are also preparing for programming job interview and looking for best System design and Software design resources then you are at the right place.

Earlier, I have shared best System Design Books, System Design Questions, System Design Cheat Sheets, and best Places to learn System Design and in this article, I am going to share best System Design Interview courses from Udemy, one of my favorite place to learn programming and technical stuff.

A couple of years ago, you can hardly find any decent System design course online like on Udemy, the ones which are available hardly touch the topic which matters like scalability, resiliency, and flexibility but things have changed since.

Nowadays there are so many System design courses you can find on Udemy but again not everything is great and you need to be careful while choosing the right course for you.

A lot of my readers asked me about which System design course to join on Udemy to prepare for programming interviews so I decided to share my recommendations.

The list includes System design interview courses from those who have been part of those interview and has experience from both side of table, as a candidate and interviewer. For example, Frank Kane, whose System Design interview course is one of the best on Udemy is an ex Amazon hiring manager.

You can join one or more of these System design courses to prepare well for your System design interview. O

ne of the best thing about Udemy is that its very affordable and now is probably the best time as they are running the biggest sale of the season where all the top courses are available for almost 85% discount and you can join a couple of nice courses with a price of one.

Anyway, let’s jump into best System design courses form Udemy, ByteByteGo, DesignGurus.io, ZTM Academy, Educative, Codemia.io, InterviewReddy.io, and other popular online platform and find which one is right for you.

ByteByteGo | Technical Interview Prep

Everything you need to take your system design skill to the next level

bytebytego.com

Educative: Interactive Courses for Software Developers

Level up your coding skills. No more passive learning. Interactive in-browser environments keep you engaged and test…

www.educative.io

Best of System Design

Buy all system design courses by Design Gurus to save 10% and have lifetime access.

designgurus.org

10 Best Courses to Learn Software Design and System Design in 2026

Without wasting anymore of your time, here is a list of best online courses you can join on Udemy to learn about essential System design concepts and prepare for System design interviews in 2026.

As I said these courses have been created by System design experts and people who have cracked FAANG interviews and worked on those companies like Amazon, Facebook, Google etc.

So you will be learning from the best and also get a first hand experience about which System design topic to prepare to do well on your System design interviews.

1. ByteByteGo System Design Course by Alex Xu

Not many people know about this resource but its one of the best resource I come across to learn and improve both System Design and Software Design.

This site is created by Alex Wu, author of famous System Design Interview — An insider’s guide, one of the best selling System Design book on Amazon and it not just cover book’s content but more than that.

The best thing about this site is that it not only provide step by step solution of common System Design Problem but also explains many key concepts in an unique illustrative way.

You will also learn about Scalability like How to scale your web app From Zero To Millions Of Users, Messaging, Caching and other key system design concepts. If you are serious about System design, then I highly recommend you to checkout this site.

Here is the link to learn more — ByteByteGo

You can see how easy it is to understand concept using this kind of illustrative diagram and ByteByteGo is full of such diagrams. it also has many free content like how to design YouTube and WhatsApp as well as nice a Framework For System Design Interviews.

ByteByteGo | Ace Your Next System Design Interview

Everything you need to take your system design skill to the next level

bytebytego.com

2. Codemia.io

While this not exactly a System design course, its a great platform to practice System design problems for interviews. You will find more than 120+ System design problems like designing URL shortner, Twitter, TicketMaster, Vending Machine and much more.

Unlike any other platform, Codemia.io provides a comprehensive framework and structure to answer System design problems starting from requirement, back of envelop estimation, high level design, low level design and much more.

Coming back to system design problems, while few problems are free, most of them are paid but you can get access to all of them for just $69 (30% discount now, original price $99)

Here is the link to learn more — Join Codemia.io for discount

In short, one of the best place to level up your System design skills in 2026.

3. Mastering the System Design Interview by Frank Kane

In this course, you will learn everything about designing a system that scale, often known as Google’s scale to handle millions and billions of users and transactions as well as Algorithms and Data Structures like Bloom Filter which plays a critical role in large scale system.

The course will also teach you System design strategies which can be crucial even if you don’t know the answer.

Apart from System design essentials, this 5 hour long course will also give you insider tips for your system design interview from a former Amazon hiring manager as well as 6 mock interviews for practice!

If cost is your concern and if you are looking for an affordable course to prepare for your System Design interview, then this is the best Software design course for you

Here is the link to join this course — Mastering the System Design Interview

4. Grokking Modern System Design For Software Engineers (Educative.io)

This is one of the newest System design course on Educative and this reflect all the hard work and experience they gained by created a couple of best System design courses you will find online.

As System design best practices have evolved the expertise required to design and build these systems have evolved and that’s where this course will help you.

It share most modern and up-to-date System design best practices you will find online.

This course starts with teaching you first the fundamental building blocks. From there, you will learn u how to combine those building blocks to design and deploy scalable services through real-world examples.

After completing this course, you will have the skills to build novel solutions to the most complex problems in modern software engineering.

Here are key things you will learn in this best System design course

16 fundamental building blocks of modern system design (like Blob Store, Key Value Store, etc.)
Learn and apply the RESHADED approach to system design
Unpack (and be able to design) some of the world’s most innovative scalable systems (including YouTube, WhatsApp, Uber, and Twitter)
Apply that design mastery to create novel solutions for emerging problems by creating your own distributed systems
Learn how to take on the system design interview and level up your career, and

No matter where your career takes you, system design will remain a cornerstone of modern software engineering. Team managers and product managers will architect scalable solutions, leveraging big data stores, user interaction, and distributed microservices.

Meanwhile, developers will implement those designs by linking the building blocks together. System design isn’t going anywhere, so everyone in the world of software engineering needs to develop a working knowledge of system design.

Here is the link to join this course — Grokking Modern System Design For Software Engineers

The course will act as a great brief introduction to the amazing world of modern system design. It is perfect for beginners as you will learn about system design from absolute scratch. You will learn exactly what system design is and why is it used.

By the way, you can either join this course individually or you can take an Educative Unlimited subscription (recommended) to get access to their 300+ high quality, text-based, interactive courses to learn key skills for coding interviews, software development, and technology.

Educative Unlimited: Stay ahead of the curve

We've heard your feedback. You can now pay just once and get full access to every course on Educative.

www.educative.io

5. Grokking the System Design Interview on DesignGuru

This is one of my favorite System design course which was earlier available on Educative but now it's moved exclusively on Designguru.io.

This site is created by

Arslan Ahmad

, a former software engineer @ Facebook, Microsoft, Hulu and writer, and probably one of the best person to learn System design concepts.

This course not only give you solution of popular System design questions like how to design a chat system like WhatsApp? or how to design a URL shortener but also a complete System Design template on how to approach and solve a system design problem.

Apart from that its an interactive online course where you can practice online right on your browser and it also got community support, but the best thing I liked about this course is the real case studies on various system design problems That’s the real gem of this course.

In short, its one of the best course to learn system design and if you want to crack your system design interview with confidence, you should checkout this course. Here is a also a nice system deign template or cheat sheet you can checkout from them

Here is the link to join this course — Grokking the System Design Interview

They also offer bundle of all of their system design and coding interview courses where you can get them for big discount. Just use code GURU to get 30% discount on any DesignGurus.io membership or course.

All Courses

Buy all courses together to save 20% and have lifetime access.

designgurus.org

6. System Design Interview Course by Exponent

I didn’t know about this website for a long time but when I found I was like OMG, how can I miss this one!! It truly one of the best website to go if you are preparing for FAANG interviews.

They have helped many people succeed in Amazon and Microsoft PM, TPM, and Software Development Engineer role and they have specialized courses for Amazon, Facebook, and Google.

You will learn to answer challenging system design questions like Design Twitter, Instagram, Parking lot, design a Web Crawler, and many other popular Software design questions. Overall a perfect System design course for engineers, managers, and architects.

But apart from the course they also provide mock interviews which is like real drill as well 1-to-1 coaching and interactive discussion on popular interview questions from Google, Facebook, Microsoft and Amazon, and you can join them for just $12 a month now (70% discount).

If you are preparing for System design interviews on FAANG companies then I highly recommend this course and website to you.

Here is the link to join — System Design Interview Course by Exponent

7. Rocking System Design by Rajdeep Saha [Udemy Course]

This is another system design course you can join on Udemy to learn about System design and Software design in general. This course is created by Cloud Architect Rajdeep Saha.

In this course, you will learn how to solve any system design problem by mastering the basics like scaling, sharding, hashing, microservices, load balancers, security, well architected framework, and more.

You will also learn about how to answer system design interview questions which is an important skill if you are serious about cracking System Design Interview of FAANG companies.

The best thing about this course is that it will also teaches you AWS implementation of the design using Kubernetes, Lambda, API Gateway, EC2, ALB, NLB etc.

The course also covers important topics about software architecture like pros/cons of different design decisions, bad vs. good answer, pitfalls to avoid, and more.

It also contains many quizzes to test your knowledge with up-to-date system design quizzes. Overall a nice course to learn about System Design and Software architecture in 2026.

Here is the link to join this course — Rocking System Design

8. System Design Interview Guide for Software Architecture

This is another amazing System design course which is created by Facebook engineer Sandeep Kaul. This 8 hour long course covers a lot of essential System design topics as well as solution of common System design problems like how to design Facebook and how to design Instagram etc.

Here are the common System design questions which are explained in this Udemy course:

1. URL shortener design

2. AirBnb Booking System design

3. Amazon System Design

4. How to design WhatsApp

5. Uber System Design

6. Twitter System Design

7. How to design YouTube

8. How to design Zoom

9. How to design Google Map

10.How to design a notification system like Netflix

The best thing about this course is the different case studies it share which can be used to learn how to design modern system which can scale as well run 24x7 all the time. I highly recommend this course to anyone who is preparing for System Design Interview.

Here is the link to join this course — System Design Interview Guide

9. Pragmatic System Design by Alexey Soshin

If you are looking for a to-the-point course which covers all key System design topics like Concurrency, Scalability, SQL vs NoSQL, Microservices etc then this Udemy course is the perfect course for you.

It also teach you how to solve most popular FANG interview questions like Yelp Design, Netflix Design, and Amazon System design questions.

Here are key topics you will learn in this course:

Scalability concepts
Common communication protocols
Caching and Redis
Concurrency
Database design and PostgreSQL
Sharding strategies

Even if you are not preparing for Technical interviews, you can join this course to improve your knowledge about System design and Software architecture in general. I highly recommend this course to e senior engineers who want to learn about system design.

Here is the link to join this course — Pragmatic System Design

10. Software Architecture & Technology of Large-Scale Systems

This one is another Software architecture course on Udemy which is worth checking out. It’s one of the most comprehensive System design course with more than 25.5 hours of content while other course only provides content of 5 to 8 hours.

It also covers key system design topics like how to create Software Systems with High Performance, Scalability, Availability, Security using Modern Technologies.

The course start with a basic three tier application architecture then move along with advanced and modern software architecture like Microservices and distributed system.

You will also learn how to cater Non-Functional Requirements like How to design architecture considering Performance, Scalability, Reliability, and Security.

Here is the link to join this course — Software Architecture & Technology of Large-Scale Systems

You will also get exposure of highly scalable technology and tech stack like Nodejs, Redis, Cassandra, Kafka, Hadoop, Elasticsearch etc. More importantly you will learn how to use Docker and Kubernetes for large scale production deployment, a key skill in this era of cloud computing.

11. ZTM Academy’s System Design Interview Course

This is one of the most recent and up-to-date course on System Design, created by team of ZTM Academy and Yihua, one of their lead instructor and System design expert.

What I liked about this course is their chapter on scalability where they explained the difference between horizontal and vertical scaling of Systems as well as challenges faced by distributed systems.

What sets this course apart from other system design courses is its emphasis on seeing the bigger picture and executing on it.

It goes beyond low-level coding and encourages students to understand the broader system they are a part of, fostering a deeper comprehension of the “why” behind their work.

By providing a problem-solving framework and practical knowledge gained from Yihua’s industry experience, the course empowers students to become better problem solvers and programmers.

Here is the link to join this course — Master the Coding Interview: System Design + Architecture

Btw, you would need a ZTM membership to watch this course which costs around $39 per month but also provides access to many super engaging and useful courses like this Python course. You can also use my code FRIENDS10 to get a 10% discount on any subscription you choose.

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That’s all about the best Software Design and System Design Interview course for programmers and developers in 2026. To be honest these are the top resources and its hard to leave anyone out but considering the time I recommend you to join only one or two of these courses as price is not a problem.

If you like to learn from multiple resources then you can also join all of them but make sure you use them judicially as you will not have enough time to go through every course. I generally make one course as corner stone and the keep referring others to solidify different topics.

If I connect to one instructor better than I stick with that course more because when you connect to the instructor you tend to learn better, faster and in-depth.

You can also watch previews of these courses to see if you are connecting with instructor before joining these courses to save your time and money.

If you cannot withstand previews then you won’t enjoy the course either. So make sure you watch the preview System design lesson to see if the course deserve your time and money.

Other System Design Interview Resources you may like

Thanks for reading this article so far. If you like these best System design and Software Design Interview Courses from Udemy and Educative then please share them with your friends and colleagues. If you have any questions or feedback then please drop a note.

P. S. — If you are looking for a free online course to learn System Design and Software design then I also suggest you to checkout this Case Studies for System Design Interviews free course on Udemy by Erdem. This 2-hour free course is great resource to prepare for System design interviews in 2026.

Top 5 Websites to Learn System Design and Software Design in 2026

Hello guys, if you are preparing for System design Interview and looking for best resources to master Software design…

javarevisited.blogspot.com

I Tried 50+ Python Courses on Udemy: Here Are My Top 5 Recommendations for 2026

2026-05-03T00:06:46.678-07:00

Hello guys, if you want to start coding or get into programming or software development field in 2026 then there is no better way than learning Python programming language.

Python is the most popular programming language and its widely used in software development, Data Science, Automation, Game Development, Machine Learning, AI, and anything you can think of except embedded programming where C and C++ rules.

If you have already made your mind on learning Python this year and just looking for best resources then you have come to the right place.

In the past, I have shared the best Python courses, best Python books, best Python projects, and best websites to learn Python, but a lot of you asked me about best Udemy courses to learn Python in 2026 so I come up with this post.

In the past few years, I have tried more than 50+ Python courses on Udemy and in this article I am going to share my best 5 Python course recommendations for 2026.

If you don’t know, Udemy is one of the best website to find video courses on internet to learn any tech skills. It has got more than 180K courses and it also often run sale where you can buy them for just $10.

That’s the reason a lot of developers including me, keep buying Udemy courses every year.

In this article, I have shared Udemy’s most popular Python courses which are especially created for beginners.

These are not boring course but carefully crafted, project oriented and coding exercise heavy courses which will not just give you knowledge but also enough practice to apply and remember that knowledge.

They are also very affordable and you can buy all of these courses for just $10 each on Udemy sales which happens every now and then. They now also have a subscription called Udemy Personal Plan which gives you access to more than 10,000 Udemy courses for just $30 a month.

If you are motivated to learn new stuff now or got good time on holiday then taking Udemy personal plan is worth of your money.

But, if you are busy and want to learn at your own pace, just buy them and you will get life time access so that you can learn anytime.

Now that we know how you can access those courses, let’ jump into these 5 best Python courses on Udemy in 2026.

5 Best Python Programming Courses on Udemy in 2026

Without any further ado, here are the 5 of the very best Python courses on Udemy which you can take in now or next year. These courses are created by experts and trusted by millions of people to learn Python.

They are also the best sellers and have got incredible reviews and rating, which means you will be learning Python from very best only.

1. 100 Days of Code — — The Complete Python Pro Bootcamp for 2026

At the moment this is probably the best Python course on Udemy. It’s both hands-on and project-based and also up-to-date to cover Python 3 concepts and Angela Yu is one of the best instructor on Udemy.

Her prior experience with Bootcamp really makes learning easy.

This Python Udemy course is also a bootcamp style Python course where you will build 100 Python projects in 100 days. It’s based upon popular 100 days of code concepts where you code everyday for 100 days.

It’s based upon the #100DaysOfCode hashtag if you could remember it was a popular tag on Twitter a couple of years back.

Along the way, you will learn to build websites, games, apps, plus scraping and data science to learn Python concepts and gain mastery.

Taught by Angela Yu, this is one of the most comprehensive and up-to-date courses to learn Python programming in 2026.

With 60-hour of content, 667 lectures, 229 articles, 116 downloadable resources this is a complete python course to learn Python basics, data science, data visualization, machine learning, desktop graphical applications, and Python for web development.

You will learn how to use modern frameworks like Selenium, Beautiful Soup, Request, Flask, Pandas, NumPy, Scikit Learn, Plotly, Matplotlib, Seaborn, and much more.

If you are looking for the best Udemy course to start your Python career then I recommend you to join this course.

Here is the link to join this Python course — — 100 Days of Code — — The Complete Python Pro Bootcamp for 2026

2. Complete Python Bootcamp: Go from zero to hero in Python 3

This is the most recommended and most popular Udemy course to learn Python. It was recommended to me by several Python experts and friends and I must say I wasn’t disappointed.

Created by Jose Portilla, one of the most popular Udemy instructor with over 4 million students, this is also a bootcamp style Python course that is focused on doing and hands-on learning.

This is one of the rare courses where you can learn both Python 2 and Python 3!, while your priority should be learning Python, you may need Python 2 knowledge if you need to maintain a Python project which is written in Python and not ported.

This is one of the best Udemy courses to learn Python and equally suitable for beginners who have never programmed and programming coming in from another programming language like Java, C++, JavaScript, or Ruby.

It’s also a great course for Python programmers who knows the basics but want to take their skills to the next level.

Here is the link to join this Python course — — Complete Python Bootcamp: Go from zero to hero in Python 3

The course is taught by Jose Portilla, one of my favorite Udemy instructors and also a best-selling author. His teaching style is simple and powerful, which means you can quickly learn Python and start doing things on your own.

3. Complete Python Developer in 2026: Zero to Mastery

This is another hands-on, project-based course to learn Python 3 on Udemy in 2026. Created by instructor Andrei Neagoie this course is one of the highest-rated Python courses on Udemy and is highly recommended for beginners.

If you are learning to code with Python then this course is perfect for you.

In this Python online course, you will not only build 12+ real-world projects like a professional Portfolio Website and a Web Scraper with Python and BeautifulSoup but also learn Web Development, Machine Learning with Python.

In short, one of the best courses to learn Python for web development and Machine learning. If you are learning Python to become a web developer then you should join this course.

If for some reason you will not be able to connect to Angela Yu or Jose Portilla’s teaching style then this is a good alternative course to learn Python as Andrei Negaoie is also very knowledgeable and engaging instructor.

Here is the link to join this Python course — Complete Python Developer in 2026: Zero to Mastery

He also runs his own online school called Zero to Mastery Academy where you can get access to all of his course with a single subscription of $39. If you like Andrei’s courses then I recommend you to join his ZTM Academy, its worth it. You can also use my code friends10 to get 10% discount on any membership.

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4. The Python Mega Course: Build 10 Real World Applications

This is one of the best project-based Python courses on Udemy. Taught by Ardit Sulce, a Python expert, this course will teach you advanced Python 3 concepts by making amazing Python Apps, not just one, two, or three but you will build 10 Python projects in this course.

The projects also touch different areas and domains to show you the full range of Python’s capabilities.

For example, you will create a web scraper to see how easy to collect data from the web using Python, and also create a portfolio website and publish it on a real server to learn web development using Python.

My favorite projects include creating a Python app that translates English words and building a webcam app that detects moving objects. These are just examples, you will seriously build a lot of useful and exciting stuff in this course.

I highly recommend this course to anyone who loves to build projects and learn along the way.

Here is the link to join this Python course — — The Python Mega Course: Build 10 Real World Applications

5. The Modern Python 3 Bootcamp by Colt Steele

The Modern Python 3 Bootcamp” by Colt Steele is a comprehensive online course designed to teach Python programming in a modern and practical way.

This course is created by Colt Steele, a former bootcamp instructor and one of the most popular Udemy instructor, know for his in-depth knowledge and engaging delivery.

This 29 hours long comprehensive covers Python 3 fundamentals and beyond, making it suitable for beginners and those looking to strengthen their Python skills.

With a high rating of 4.7, it’s also well-received by its 151,000 students. The course encompasses a wide range of topics, including data structures, object-oriented programming, web development, and more.

Colt Steele’s engaging teaching style and hands-on projects ensure that students gain a solid understanding of Python for various applications.

Here is the link to join this Python course — The Modern Python 3 Bootcamp by Colt Steele

That’s all about the best Python courses on Udemy you can join in 2026. As I said, learning Python can be a life changing decision for anyone and its a great first step to start your career in programming and software development, and these Udemy courses will teach you enough Python so that you can stand on your own on interviews.

While Python is also very vast and as a Software developer you always need to learn things, Udemy can be your best friend in this journey.

I really love their high quality courses like the ones I have shared above which you can grab for just $10, learning was never that much affordable.

And with the Udemy personal plan, you can also get access to more than 10K Udemy’s high quality courses which are also part of Udemy for Business for just $30.

If you got time and motivation then you should take that option and its best value of money, but if you are a busy guy, its better to buy courses individually as you will have life time access.

And, if you want to become a Python master or expert, here is a great roadmap from roadmap.sh you can follow along:

Other Python Programming Books and Courses you may like

Thanks for reading this article so far. If you like these best Python Courses, from Udemy, one of the most reputed online learning platform, then please share with your friends and colleagues. If you have any questions or feedback, then please drop a note.

P. S. — — If you are looking for just one course on Udemy then I highly recommend you to join Jose Portiall’s Complete Python Bootcamp: Go from zero to hero in Python course. It’s the most popular Python course on the planet. More than 1,164,741 (1 million+) students Students have already joined this course.

I Tried 40+ Microsoft Excel Courses on Udemy: Here Are My Top 7 Recommendations for 2026

2026-04-28T20:59:00.987-07:00

Hello guys, if you have worked as an IT professional no matter whether you are a Developer, Data Scientist, Project Manager, System Administrator or Business Analyst, there is high chance that you may have come across Microsoft Excel in your career.

If you want o master Excel and looking for resources then you have come to the right place.

Earlier, I have shared best free Excel courses and best paid Excel courses as well as advanced Excel VBA courses but a lot of you asked me to share best Excel courses from Udemy, which are both affordable and suitable for 2026.

So here we are, in this article, I am going to share 7 Excel courses from Udemy which you can join in 2026.

Microsoft Excel remains one of the most powerful tools for data analysis, business intelligence, and everyday office tasks and that’s why its important for every IT Professional to learn it.

Whether you’re a beginner trying to understand the basics or an advanced user looking to master Excel’s automation and analytical capabilities, there’s always more to learn in Excel.

in 2026, Excel’s integration with AI tools, automation, and advanced formulas makes it a crucial skill for professionals in every industry.

In this post, I am going to highlight the 7 best Udemy courses to master Microsoft Excel and why learning Excel is essential for your career.

Though, if you are in rush and just need an Excel course to start with then you can start with Microsoft Excel — — Excel from Beginner to Advanced course on Udemy. This is probably the most popular Excel course on Udemy and suitable for beginners.

It also cover almost all popular Excel versions like Excel 2010, 2013, 2016, Excel 2019, Office 365/2024 including the latest one.

Why Learn Microsoft Excel in 2026?

Before we dive into the best Excel courses, let’s take a look at why learning Excel in 2026 is such a valuable skill in today’s workplace:

Universal Tool: Excel is used across industries — — whether you’re in finance, marketing, IT, or even healthcare. It’s a universal language for data management, analysis, and reporting.
Powerful for Data Analysis: Excel is capable of performing everything from simple data entry to complex statistical analysis. Tools like Pivot Tables, advanced formulas, and macros make Excel essential for business intelligence and decision-making.
Automation: With the ability to use VBA (Visual Basic for Applications) and Macros, Excel allows users to automate repetitive tasks, saving time and boosting productivity
Integrating AI: The 2024 and 2025 versions of Excel incorporate AI-powered features, making data prediction and analysis more intuitive and efficient. Excel’s role in data science, thanks to its AI capabilities, continues to grow.

In short, Excel is a must know tool for IT professional and from developer to data scientists and project manager to business analyst should learn Excel to become more productive in their job.

And, if you can’t wait, just start with the Microsoft Excel — Excel from Beginner to Advanced course on Udemy, its my favorite beginner level online training course to learn Excel basics.

7 Best Udemy Courses to Learn Microsoft Excel in 2026

Without any further ado, here are the best Excel training courses you can join on Udemy. All of these courses are completely online and suitable for beginners.

Many of these excel training courses also cover advanced excel topics like pivot table, advanced formulas, data visualization, and macros.

1. Microsoft Excel — Excel from Beginner to Advanced

Students: 1,535,057
Why Take This Course: This bestselling course covers everything from the basics of Excel to advanced topics like Pivot Tables, advanced formulas, and data analysis techniques.
It’s a complete package, offering lifetime access and a step-by-step approach that caters to all learners.
What You’ll Learn: Microsoft Excel 2010, 2013, 2016, Excel 2019, Office 365/2024; beginner to advanced techniques.

Here is the link to join this course — — Microsoft Excel — — Excel from Beginner to Advanced

2. Microsoft Excel — Excel from Beginner to Advanced

Students: 57,524
Why Take This Course: This course offers a comprehensive guide to Excel, from beginner-level basics to advanced techniques.
It’s especially useful for those working with Office 365 or any other version of Excel.
What You’ll Learn: All Excel basics, plus advanced techniques for data analysis, dashboards, and automation.

Here is the link to join this course — — Microsoft Excel — — Excel from Beginner to Advanced

3. The Ultimate Microsoft Excel Mastery Bundle — 8 Courses

Students: 10,835
Why Take This Course: This bundle provides incredible value, offering eight courses that take you from a complete beginner to an advanced Excel user.
Whether you’re looking to become an Excel power user or specialize in areas like data analysis or automation, this course has you covered.
What You’ll Learn: Excel basics, advanced formulas, data analysis, Pivot Tables, and more.

Here is the link to join this course — — The Ultimate Microsoft Excel Mastery Bundle — — 8 Courses

4. Microsoft Excel: Beginner to Advanced in Animation + AI

Students: 36,606
Why Take This Course: This course is perfect for visual learners. Using animations, the instructor breaks down even the most complex Excel techniques into easy-to-understand steps.
It covers everything from basic Excel navigation to AI-powered tools and dashboards.
What You’ll Learn: Advanced Excel skills, Pivot Tables, dashboards, AI features in Excel.

Here is the link to join this course — — Microsoft Excel: Beginner to Advanced in Animation + AI

5. Microsoft Excel: Advanced Excel Formulas & Functions

Students: 404,103
Why Take This Course: This bestseller course focuses exclusively on advanced Excel formulas and functions, making it ideal for users who want to dive deep into data analysis and business intelligence.
It covers over 75 powerful formulas that you can use to automate tasks and extract insights from data.
What You’ll Learn: Advanced Excel functions, automation, formulas for data analysis, and business intelligence.

Here is the link to join this course — — Microsoft Excel: Advanced Excel Formulas & Functions

6. Microsoft Excel — From Beginner to Expert in 6 Hours

Students: 186,905
Why Take This Course: This fast-paced course is designed for learners who want to quickly gain expert-level Excel skills.
Taught by a Microsoft-certified instructor, you’ll get up to speed on everything from the basics to expert-level features in just six hours.
What You’ll Learn: Beginner to expert Excel skills in a time-efficient manner.

Here is the link to join this course — — Microsoft Excel — — From Beginner to Expert in 6 Hours

7. Unlock Excel VBA and Excel Macros

Students: 214,376
Why Take This Course: This is the go-to course if you want to automate complex tasks in Excel using VBA (Visual Basic for Applications) and Excel Macros.
It provides hands-on projects that help you master automation and save time on repetitive tasks.
What You’ll Learn: Excel VBA, macros, task automation, real-world projects.

Here is the link to join this course — Unlock Excel VBA and Excel Macros

Excel Cheat Sheet: Key Formulas and Functions You Should Know

As you learn Excel, having a quick reference guide to the most important formulas and functions can make your life easier. Here’s a handy Excel cheat sheet to get you started:

SUM(): Adds values together.
=SUM(A1:A10)
AVERAGE(): Calculates the average of a range of numbers.
=AVERAGE(B1:B10)
VLOOKUP(): Searches for a value in a table.
=VLOOKUP(C1, A1:B10, 2, FALSE)
IF(): Checks whether a condition is met, and returns one value if true and another if false.
=IF(D1>100, "Yes", "No")
INDEX(): Returns the value of a cell in a specified row and column.
=INDEX(A1:C10, 2, 3)
MATCH(): Returns the relative position of an item in a range that matches a specified value.
=MATCH("Item", A1:A10, 0)
CONCATENATE(): Joins two or more strings together.
=CONCATENATE(A1, " ", B1)
COUNTIF(): Counts the number of cells that meet a criterion.
=COUNTIF(A1:A10, ">5")
Pivot Tables: A powerful tool to summarize, analyze, explore, and present your data.
Insert a Pivot Table by navigating to the “Insert” tab and selecting “PivotTable.”

These are just a few of the many powerful features that Excel offers, and mastering these will set you apart as an Excel pro, and if you want to learn more, here is an awesome Excel basic cheat sheet from Datacamp to revise all important Excel formulas

Conclusion

That’s all about the 7 best Udemy courses to learn Microsoft Excel in 2026. Microsoft Excel is a must-have skill in today’s data-driven world, and learning it thoroughly can significantly enhance your career opportunities.

Whether you’re an Excel novice or looking to become an Excel power user, these 7 best Udemy courses to learn Excel offers the perfect blend of theory and practical experience to elevate your Excel game in 2026.

With options for every skill level, these courses will help you master Excel’s advanced features, automate tasks, and unlock new potential for data analysis and business intelligence.

Don’t forget to refer to the cheat sheet as you continue practicing and applying these skills! Excel mastery is just a few courses away, and with these Udemy courses, you’ll be ready to tackle even the most complex data challenges.

Other Data Analysis Articles and Resources you may like

Thanks for reading this article so far. If you find these Microsoft Excel training courses useful then please share them with your friends and colleagues. If you have any questions or feedback then please drop a note.

P. S. — — If you are keen to learn Microsoft Excel but looking for free online training courses to start with then you can also check out this Useful Excel for Beginners on Udemy. It’s completely free and trusted by more than 383,000 students. It has more than 9.5 hours of content which is like any other paid course.

Udemy vs DataCamp Review? Which is best Platform to Learn Python and Data Science in 2026?

2026-04-28T20:52:31.664-07:00

Hello guys, if you want to learn Python, SQL, DataScience, and Data Analysis and wondering whether you should go for Udemy or DataCamp in 2024 then you have come to the right place. Both are great platforms but there is a big difference between them, Datacamp is specially designed for teaching data skills and has a lot of quizzes, assessments, and interactive learning material for complete data skill learning, on the other Udemy is the world's largest online course marketplace and the best online courses to learn Python, SQL, and Data Science in 2024. Earlier, I have published a review of Udemy vs Coursera, Udemy vs Educative, Udemy vs Pluralsight, LinkedIn Learning vs Edureka, and in this article, we will review Udemy vs DataCamp, which will help in your decision on whether you should go for Udemy courses or Datacamp to learn essential Data skills in 2026.

I Tried 25+ Microservices Courses on Udemy: Here Are My Top 7 Recommendations for 2026

2026-04-28T08:03:58.242-07:00

Hello guys, In today’s rapidly evolving tech landscape and rise of distributed systems and cloud computing, microservices architecture has become a key solution for building scalable, maintainable, and efficient applications.

By breaking down monolithic applications into smaller, independent services, microservices allow for easier deployment, scaling, and management. But how can you get started with microservices?

Whether you’re a seasoned developer or just beginning to explore the world of microservices, Udemy offers a wealth of courses to help you master this architectural style.

In this article, we’ll highlight the top 7 Udemy courses for learning microservices in 2026, so you can choose the one that best fits your needs and skill level.

By the way, if you are in hurry then you can start with the Master Microservices with Spring Boot, Docker, Kubernetes course on Udemy. This course will not just teach you what is Microservices but also architecture and benefits as well as how to create them using Java and Spring Boot stack.

Why Learn Microservices in 2026?

Microservices architecture is a game-changer in modern software development.

Unlike traditional monolithic applications where all components are interconnected and dependent, microservices break down functionality into smaller, independent services.

These services can be developed, deployed, and scaled individually, providing greater flexibility and agility.

Learning microservices is essential for several reasons:

Scalability: Microservices allow for horizontal scaling, where individual services can be scaled independently.
Flexibility: Developers can use different technologies, frameworks, and databases for each microservice.
Fault Isolation: In a microservices architecture, the failure of one service does not necessarily bring down the entire system.
Faster Deployment: Smaller, independently deployable services mean faster release cycles.
Easier Maintenance: With well-defined boundaries, each service can be developed and maintained by smaller, more focused teams.

Here is how Microservices architecture looks like:

Now, let’s dive into the top 7 Udemy courses to help you learn and master microservices.

Top 7 Microservices Courses on Udemy in 2026

Without any further ado, here are the best Udemy courses you can join to learn Microservices architecture in depth. Not just Microservices concepts and pattern but also how to implement Microservices in various tech stack like Java and Spring Boot, React and Node.js and even Microsoft .NET core and ASP .NET

1. [NEW] Master Microservices with Spring Boot, Docker, Kubernetes

This course offers an in-depth introduction to microservices using Spring Boot, one of the most popular frameworks for building Java-based applications.

In addition to Spring Boot, you’ll learn about Docker, Kubernetes, and Helm, which are crucial tools for deploying and managing microservices in a cloud-native environment.

Students: 57,933
Rating: Bestseller
Instructor: Madan Reddy

The course also covers microservices security, making it an excellent choice for Java developers looking to build secure, scalable microservices.

Key topics covered include:

Building microservices with Spring Boot
Deploying with Docker, Kubernetes, and Helm
Microservices security practices

If you’re a Java developer, this course is one of the best starting points to gain practical microservices skills.

Here is the link to join this course — -[NEW] Master Microservices with Spring Boot, Docker, Kubernetes

2. The Complete Microservices & Event-Driven Architecture (udemy)

This course takes a deep dive into microservices and event-driven architecture, a key concept for building real-time, scalable systems.

You will learn how to design highly scalable systems using microservices and event-driven architecture, ensuring that your applications can handle large volumes of transactions without breaking a sweat.

Students: 11,246
Rating: Bestseller
Instructor: Michael Pogrebinsky

Key topics covered include:

Microservices architecture design
Event-driven architecture with Kafka
Building scalable and resilient systems

This course is ideal for developers who want to learn event-driven microservices and understand how to build systems that can scale effectively.

Here is the link to join this course— The Complete Microservices & Event-Driven Architecture

3. Master Microservices with Spring Boot, and Spring Cloud (udemy)

If you’re looking for a course specifically tailored to Java and Spring Cloud, this is a comprehensive guide to mastering microservices.

It covers how to build and deploy microservices using Java and Spring Boot, and takes you through key cloud tools like Spring Cloud and Netflix OSS.

Students: 266,845 students
Instructor: Ranga Karnama nd In28Minutes

By the end of the course, you’ll have the skills to create distributed systems that can scale effectively.

Key topics covered include:

Building microservices with Spring Boot and Spring Cloud
Configuring service discovery with Netflix Eureka
Circuit breakers with Hystrix

For Java developers who want to dive into the cloud-native side of microservices, this course provides a well-rounded curriculum.

Here is the link to join this course — Master Microservices with Spring Boot, and Spring Cloud

4. Microservices with Node JS and React (Udemy course)

Microservices are not limited to Java-based frameworks. In this course, you will learn how to build microservices using Node.js and React, making it perfect for full-stack JavaScript developers.

This course covers the fundamental concepts of microservices while showing you how to integrate React for building a modern front-end.

Students: 24,452
Instructor: Stephen Grider

Key topics covered include:

Building microservices with Node.js
Integrating React for front-end development
Using Docker for containerization

This course is ideal for JavaScript developers looking to leverage Node.js and React to build full-stack microservices applications.

Here is the link to join this udemy course — — Microservices with Node JS and React

5. Microservices with Spring Cloud (Udemy)

This course is focused on teaching you how to build resilient microservices with Spring Cloud. You will learn how to use various Spring Cloud components like Config Server, Eureka, Ribbon, and Zuul to create a distributed system.

The course also covers distributed tracing and monitoring using Spring Cloud Sleuth and Zipkin, which are essential for maintaining microservices.

Students: 35,136
Instructor: Ken Krueger

Key topics covered include:

Service registration and discovery with Eureka
Load balancing with Ribbon
Distributed tracing with Zipkin

If you’re working with Spring Cloud, this course is a must to fully understand its capabilities in the context of microservices.

Here is the link to join this course — — Microservices with Spring Cloud

6. Design Microservices Architecture with Patterns & Principles

In this course, you’ll dive deep into deploying microservices on architecture and Kubernetes, the leading container orchestration platform.

It focuses on building microservices applications, scaling them using Kubernetes, and managing them efficiently.

You will also learn how to design Microservices Architecture with using Design Patterns, Principles and the Best Practices

Students: 43,667 students
Instructor: Mehmet Ozkaya

The course is ideal for those who want to learn cloud-native microservices and understand how to deploy and scale applications using Kubernetes.

Key topics covered include:

Microservices Distributed Transaction Management
Microservices Distributed Caching
Service meshes and microservices patterns

This is a great course for those looking to specialize in microservices deployment with Kubernetes.

Here is the link to join this course — — Design Microservices Architecture with Patterns & Principles

7. Spring Boot Microservices and Spring Cloud. Build & Deploy

This course takes you step-by-step through the process of building Spring-based microservices from scratch.

It covers Spring Boot, Spring Cloud, and Spring Data, giving you a strong foundation in Spring’s microservices ecosystem.

It also provides practical examples of microservices architecture patterns, making it an excellent resource for Java developers.

Students: 44,463
Instructor: Sergey Kargopolov

Key topics covered include:

Implementing microservices with Spring Boot
Using Spring Data for microservices databases
Applying microservices patterns in real-world applications

For developers committed to mastering Spring-based microservices, this course offers deep insights and hands-on projects.

Here is the link to join this course — Spring Boot Microservices and Spring Cloud. Build & Deploy

Conclusion

With the rise of cloud computing and distributed systems, microservices have become an essential architecture for building scalable, reliable applications.

The demand for microservices expertise is growing across industries, making it a valuable skill to acquire in 2026.

These top 7 Udemy courses provide an excellent starting point for developers of all levels, whether you’re a Java, JavaScript, or full-stack developer.

From hands-on projects to real-world scenarios, these courses will equip you with the knowledge and skills to build, deploy, and manage microservices applications effectively.

So, whether you’re looking to upskill for a job in cloud development or to learn a new architecture for your next project, Udemy has the right course for you.

You can also get these courses for $10 a piece on Udemy sale which is happening now. I already bought a lot of courses for learning new technology and reviewing them this summer.

By the way, if you want to join multiple course on Udemy, its may be worth getting a Udemy Personal Plan, which will give instant access of more than 11,000 top quality Udemy courses for just $30 a month.

Other System Design Interview Resources you may like

Thanks for reading this article so far. If you like these best Microservices Courses from Udemy then please share them with your friends and colleagues. If you have any questions or feedback then please drop a note.

Happy learning!

P. S. — By the way, if you want to join multiple course on Udemy, its may be worth getting a Udemy Personal Plan, which will give instant access of more than 11,000 top quality Udemy courses for just $30 a month.

Review — Is the Udemy Personal Plan Worth It?

Is Udemy’s Personal Plan better than buying individual courses?

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I Tried 15+ JavaScript and React Courses on Frontend Masters: Here Are My Top 5 Recommendations for 2026

2026-04-27T20:53:41.466-07:00

Hello guys, if you want to learn JavaScript in 2026 and looking for best project based courses to learn JavaScript then there is no better courses then what Frontend masters offer.

Its no secret that JavaScript continues to be a cornerstone of web development, with its ecosystem evolving rapidly and if you are looking to enhance you skills or stay current with the latest trends, project-based learning offers a practical and engaging approach.

Frontend Masters, a platform renowned for its high-quality web development courses, provides an excellent selection of JavaScript-focused programs.

In this article, we’ll explore the top 5 project-based courses from Frontend Masters that promise to elevate your JavaScript proficiency in 2026.

Whether you’re a junior developer with a year or two of experience or a seasoned coder aiming to refine your expertise, these courses offer valuable insights and hands-on experience to boost your career in the ever-changing landscape of web development.

By the way, I have an exciting news to share with you, Frontend Masters is offering $100 off their yearly membership during their Knowledge Quest Sale.

This is your chance to access over 200+ premium courses, guided learning paths, and new platform features, all at a fraction of the cost.

Whether you want to master JavaScript, React, or DevOps, now’s the time to join and level up your skills. Don’t miss out — the sale ends on 18th September!

👉 Join today and save $100 on your yearly membership!

Frontend Masters Knowledge Quest Sale

Celebrating new powerful features that empower you to explore your software development journey!

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5 Best Courses to learn JavaScript on Frontend Masters in 2026

Here is a list of 5 best Frontend end masters courses to learn JavaScript in depth. Most of them are also project based and offer hands-on practice.

1. Deep JavaScript Foundations, v3 by Kyle Simpson

This course dives deep into JavaScript’s core mechanisms. While not strictly project-based, it provides crucial knowledge for advanced JavaScript development.

If you are a beginner with 1 to 2 years of experience then this course is perfect for you at this stage.

With 1–2 years of experience, you likely have a good grasp of JavaScript basics, but this course will help solidify your understanding of core concepts and fill in any knowledge gaps.

It will provide you with a deeper understanding of JavaScript’s nuances, which is crucial for advancing your skills.

Key topics:

Types and Coercion
Scope and Closures
Object-Oriented JavaScript
Prototypes and ‘this’ keyword

Key benefits for you:

Strengthen your foundational knowledge
Understand JavaScript’s behavior in depth
Prepare you for more advanced concepts and larger projects

This course is excellent for beginners developers looking to truly understand JavaScript’s inner workings, which is essential for tackling complex projects.

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2. JavaScript: The Hard Parts, v2 by Will Sentance

This course would be a great follow-up to Kyle Simpson’s course. It will challenge you with advanced concepts and help you think like a senior JavaScript developer.

This course focuses on advanced JavaScript concepts through coding challenges and exercises.

Key topics:

Callbacks & Higher-Order Functions
Closures
Asynchronous JavaScript
Object-Oriented Programming

Key benefits for you:

Deepen your understanding of callbacks, closures, and asynchronous JavaScript
Improve your problem-solving skills
Prepare you for more complex JavaScript patterns you’ll encounter in larger projects

It’s known for its in-depth explanations of how JavaScript works under the hood, which can greatly improve your problem-solving skills in real-world projects.

Here is the link to join this course — JavaScript: The Hard Parts, v2 by Will Sentance

3. Complete Intro to React, v8 by Brian Holt

If you haven’t worked with React yet, or if you’re looking to solidify your React skills, this course would be very beneficial. React is widely used in the industry, and this project-based course will give you practical experience.

This is a comprehensive, project-based course where you build a full React application from the ground up.

Key topics:

React Fundamentals
Hooks
React Router
State Management

Key benefits for you:

Learn or improve your React skills
Gain experience building a full application
Understand modern JavaScript in the context of a popular framework

You’ll also create a pet adoption website, applying React concepts in a practical, real-world scenario.

Here is the link to join this course — Complete Intro to React, v8

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4. State Management in Pure React, v2 by Steve Kinney

This course focuses on managing state in React applications without using additional libraries.

This course would be most beneficial after you’ve completed the React course and have some experience building React applications.

Key topics:

Component State
The Context API
Hooks for State Management
Performance Optimization

Key benefits for you:

Learn how to identify and fix performance issues
Understand how to write more efficient JavaScript
Gain skills that will set you apart in job interviews or at work

You’ll also work on projects that demonstrate different state management techniques, helping you choose the right approach for your applications.

5. React Performance by Steve Kinney

With 1–2 years of experience, you’re at a good point to start thinking about performance optimization. This course will teach you valuable skills for improving the efficiency of your JavaScript code.

This course teaches you how to optimize JavaScript applications for better performance.

Key topics:

Measuring Performance
Optimizing Rendering
Memory Management
Network Optimization

Key benefits for you:

Learn how to identify and fix performance issues
Understand how to write more efficient JavaScript
Gain skills that will set you apart in job interviews or at work

Through practical examples and projects, you’ll learn to identify and fix performance bottlenecks in JavaScript applications.

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That’s all about the 5 best Project based Frontend Masters courses to learn JavaScript in depth. These courses are designed to take your JavaScript skills to the next level, each focusing on different aspects of advanced JavaScript development.

They combine theoretical knowledge with practical application, allowing you to immediately apply what you learn to real-world scenarios.

You can learn more about Frontend Masters and these courses here

Learn JavaScript, React, and TypeScript to Node.js, Fullstack, and Backend

Advance your web development and software engineering skills from front-end to full-stack!

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Other Frontend Masters Articles you may like to read

Thank you for reading this article till the end. If you like this course then please share with your friends and colleagues. If you have any questions or doubts then feel free to ask.

P. S. — If you are keen to level up your frontend skills then joining frontend master can be a great first step as they have awesome courses to learn valuable frontend skills

Frontend Masters Knowledge Quest Sale

Celebrating new powerful features that empower you to explore your software development journey!

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I Joined JavaScript Hard Parts Course on Frontend Masters - Here is My Honest Review

2026-04-26T21:06:16.937-07:00

image_credit — Frontend Masters

Hello guys, if you are looking for a deep dive course to learn JavaScript in depth then have come to the right place.

Earlier, I have shared best JavaScript courses, books, and websites and today, I am going to share an awesome online course called “JavaScript Hard Parts v2” from Frontend Masters, one of my favorite place to learn web development and JavaScript.

This course aims to teach you advanced JavaScript topics like callbacks and higher-order functions, closure, asynchronous JavaScript, and object-oriented JavaScript!

Frontend Masters has long been known for its high-quality, in-depth courses on various web development topics, and “JavaScript: The Hard Parts” by Will Sentance of Codesmith is no exception.

In this review, we’ll dive into the content, structure, and overall value of this course to help you determine if it’s worth your time and investment.

By the way, I have an exciting news to share with you, Frontend Masters is offering $100 off their yearly membership during their Knowledge Quest Sale.

This is your chance to access over 200+ premium courses, guided learning paths, and new platform features, all at a fraction of the cost.

Whether you want to master JavaScript, React, or DevOps, now’s the time to join and level up your skills. Don’t miss out — the sale ends on 18th September!

👉 Join today and save $100 on your yearly membership!

Now, coming back to the topic, We will review the course on Instructor expertise and content structure, and find out whether its worth of your time and money or not.

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Instructor Expertise

The instructor of this course, Will Sentance is co-founder and CEO at Codesmith — a software engineering and machine learning company based in Los Angeles, New York, and Oxford.

He is the creator of Icecomm, the most famous developer platform for P2P video and data communication. Before Codesmith, Will was CEO at Ownly and a Software Engineer at Gem.

When it comes to teaching Will has got a an interesting and engaging way to to teach complex concepts. He has got a great voice and you will not fall a sleep while watching his classes.

He also have in-depth knowledge of JavaScript internals and how it works under the hood, which even shows in the preview lesson which you an watch for free.

Course Overview

“JavaScript: The Hard Parts” is designed to take you under the hood of some of the most critical aspects of JavaScript. The course promises to provide a deep understanding of advanced JavaScript concepts like callbacks, higher-order functions, closure, asynchronous JavaScript, and object-oriented JavaScript.

It’s aimed at developers with a basic to intermediate knowledge of JavaScript who want to elevate their understanding to the next level.

Content and Structure

The course is divided into several learning paths and topics, each focusing on fundamental JavaScript principles:

JavaScript Principles: Covers the basics of JavaScript execution, functions, and the call stack.
Functions & Callbacks: Explores generalized functions, higher-order functions, callbacks, and arrow functions.
Closure: Dives into the concept of closure, how it works, and its practical applications.
Asynchronous JavaScript: Discusses single-threaded execution, asynchronicity in JavaScript, web APIs, promises, and async/await.
Classes & Prototypes: Covers object-oriented programming concepts, including factory functions, prototype chains, the this keyword, and the new keyword.

Each topic is further broken down into detailed lectures, with Will Sentance providing clear explanations, diagrams, and real-world examples to reinforce key concepts.

It’s also very details as you can see from this table of content:

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Closure:

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Asynchronous JavaScript:

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Promises:

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Classes and Prototypes

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You can see that each of the advanced JavaScript topics like callbacks and higher-order functions, closure, asynchronous JavaScript, Promises and object-oriented JavaScript is covered in detail.

Pros

Apart form Frontend Masters impeccable video and audio quality and well structure content, here are few more highlights of this course which makes it worth of your investment.

In-Depth Coverage: The course delves deeply into complex JavaScript concepts, providing a thorough understanding of each topic.
Clear Explanations: Will Sentance’s teaching style is clear, engaging, and easy to follow, making even challenging concepts more accessible.
Real-World Examples: Real-world examples and practical applications help reinforce theoretical knowledge and make it easier to understand how these concepts apply in actual development scenarios.
Interactive Exercises: Pair programming exercises and coding challenges encourage hands-on learning and application of the concepts covered in each section.

Here is the link to join this course — “JavaScript: The Hard Parts”

Cons

Nothing is perfect, and there is always room for improvements, here are few things which may cause concern before you join the course.

Advanced Material: While the course is valuable for intermediate developers looking to deepen their understanding of JavaScript, some beginners may find the content challenging to grasp without a solid foundation in the language.
Intensive Time Commitment: With over six hours of content, the course requires a significant time investment to complete fully.

Conclusion

In short, Yes, “JavaScript: The Hard Parts” on Frontend Masters is a comprehensive and valuable resource for developers looking to master advanced JavaScript concepts like callbacks and higher-order functions, closure, asynchronous JavaScript, Promises and object-oriented JavaScript .

It’s 100% worth it because of its in-depth coverage, clear explanations, and practical examples, the course offers a solid foundation for understanding the inner workings of JavaScript.

If you’re willing to put in the time and effort to tackle the challenging material, this course can undoubtedly help you level up your JavaScript skills and become a more versatile and problem-solving developer.

However, beginners may want to ensure they have a solid understanding of JavaScript basics before diving into this course.

In summary, if you’re serious about advancing your JavaScript knowledge and are ready to tackle the hard parts, this course is undoubtedly worth considering.

All the best with JavaScript learning journey.

If you want to do just one thing, go and join this course on Frontend Masters

Learning the Hard Parts of JS

Take your JavaScript to the next level. Gain an understanding of callbacks, higher-order functions, closure…

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Other Frontend Masters Articles you may like to read

Thank you for reading this article till the end. If you like this course then please share with your friends and colleagues. If you have any questions or doubts then feel free to ask.

P. S. — If you are keen to level up your frontend skills then joining frontend master can be a great first step as they have awesome courses to learn valuable frontend skills 👉 Join today and save $100 on your yearly membership!

Frontend Masters Knowledge Quest Sale

Celebrating new powerful features that empower you to explore your software development journey!

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Top 10 Must-Know Object Oriented Analysis and Design (OOAD) Interview Questions for Senior & Experienced Developers (2026)

2026-04-26T03:14:48.982-07:00

Testing Object Oriented analysis and design skill of a candidate is quite common in programming job interviews. Questions like, how do you design a vending machine or a traffic control system are very popular in object-oriented programming language interviews, like Java and C++. Designing a software System requires good experience and knowledge of tools of object-oriented design and analysis.

You should not only be good at OOP fundamentals like Abstraction, Inheritance, Polymorphism, Encapsulation, Coupling, Cohesion, Association, Aggregation, or Composition but also on several crucial object-oriented design principles like SOLID Principles of Object-Oriented Design, which is the building block for writing flexible and maintainable code.

Good knowledge of when to use a class over an interface is also essential for designing a maintainable software or Java application. Now, the questions are how do you develop such skills? You need to practice and practice hard.

This is why I am sharing some frequently asked object-oriented design questions from Java programming interviews here.

Anyway, Software design has many facets, object-oriented system design is just one of them. Sometimes, you may be asked to design a database for an e-commerce application. Database design is totally different than object-oriented design.

There you need to follow rules of flexible and maintainable designs and Normalization. You need to make sure your tables are in 3rd normal form, and there is a nice balance between duplication of data and the easiness of querying the data.

Btw, this tutorial is about object-oriented system design, and I’ll share questions on that. I’ll write about SQL and database design sometime later to give you more information and some practice questions as well.

Another thing to note is that now there are a couple of excellent courses available online, which can help you with this challenging aspect of coding interviews. I have tried the Grokking System Design Interview and Grokking the Object-Oriented Design Interview courses from Designgurus.io, and I must say they are excellent to prepare well.

These courses are designed by the hiring managers of Google, Facebook, Microsoft, and Amazon. They not only has a set of carefully handpicked case studies, which have been repeatedly asked at the top tech companies but also provide a thorough experience to handle different object-oriented design scenarios.

10 Object-Oriented and Software Design Interview Questions and Problems

Here is my list of frequently asked object-oriented and software design questions from programming job interviews. You will find such kinds of questions not only on biggies like Amazon, Google, Microsoft, and Facebook but also on small startups and service-based companies like Infosys, Wipro, TCS, and Cognizant.

Though for a comprehensive preparation, I also suggest you take a look at Java Programming Interview Exposed, which contains questions from all important Java topics, like Core Java, data structure and algorithms, multithreading, garbage collection, JVM internals, and frameworks like Spring and Hibernate.

Problem 1: Design a Vending Machine in Java (solution)

You need to design a Vending Machine which follows the following requirements:
1. It should accepts coins of 1,5,10,25, 50 Cents, i.e., penny, nickel, dime, and quarter as well as 1 and 2 dollar note

2. Allow user to select products like CANDY(10), SNACK(50), NUTS(90), Coke(25), Pepsi(35), Soda(45)

3. Allow users to take a refund by canceling the request.

4. Return the selected product and remaining change if any

5. Allow reset operation for vending machine supplier

You can try solving the problem on your own before looking at the solution. At least come up with classes and method names and relationship between classes. Preparing a UML diagram is bonus.

Problem 2: Design a URL shortener service like bit.ly? (solution)

You need to design a URL shortener service like bit.ly or goo.gl. You can insert the full URL and get a short one.

Your short URL should also record the stats about how many times it was accessed. Your system should also be able to handle concurrent users and millions of URL shortening per day. Think about auditing and bookkeeping, as well.

Btw, If you struggle to start with these questions, then you can also see the Grokking The System Design Interview, which contains a whole chapter on designing URL shortening services like TinyURL, Google URL, and Bitly.

Here is the system diagram from the same course, which explains the different components of a URL shortening service. I strongly suggest you check the course, this lesson is also available for a FREE preview.

Problem 3: Design an Efficient Parking Lot (Solution)

Designing a parking lot involves creating a system with user authentication for attendants, a centralized database for vehicle records, and an intuitive user interface for managing parking spaces.

The system would include features like entry/exit logging, real-time space availability updates, and online payment options. Security measures, such as surveillance cameras and access controls, would be implemented.

Your solution should provide both high level and low level design, including API design and Database or table design. It should also consider non-functional requirements like scalability (1000 places), avaibility, and Consistency. Once a reservation is made, the parking spot must be available for the user. No double-booking.

A mobile app or website could facilitate user reservations and provide navigation within the parking lot. Regular monitoring and maintenance would ensure optimal functionality, and a backup system would be in place for data recovery in case of system failures.

And, if you get stuck see Codemia.io’s editorial solution for designing an efficient Parking Lot . It’s one of the most completion solution of this problem including API design, database design, storage and bandwidth requirement, and much more.

Problem 4: Design a Lift or Elevator system in your programming language?

An elevator is a combination of at least two elevators, one going up and another coming down. The goal is to minimize the waiting time of the user. Make sure you how your design will evolve if a lift is installed on high-rise buildings over 20 floors.

How many lifts do you need to serve 40 floors with a waiting time of no less than 30 seconds on average. Think about the parking strategy of your lift, i.e., which floor they should be resting on or should they keep going up or down, etc.

If you need solution, you can watch the following video which explains how to design a lift system step by step but as I said, you must try to come up with basic design first.

And, if you need another solution of this system design problem then you can also see Codemia.io’ Object oriented problems. It’s one of the most completion solution of this problem including API design, database design, storage and bandwidth requirement, and much more.

Problem 5: Design and implement LRU cache in Java or C++?

An LRU cache stands for Least Recently Used. It should remove the least recently used item from the cache to make space for a new item. Think about the persistence strategy of the cache. how do you build cache after crash etc?

Let me give you a hint, you can use a LinkedHashMap to build an LRU cache in Java.

If you need full solution, you can also checkout this YouTube video by Backtobackswe, one of the best place to prepare for coding interviews

Problem 6: Design a Traffic Controller System for a Junction?

You need to design software to control traffic lights at a junction where traffic is coming from four sides. It should follow basic traffic rules, allow a pedestrian to cross the road, and traffic to pass in a reasonable time.

How do you optimize the waiting time with respect to high traffic from one direction, like during morning and evening rush hours?

If you need some help then a similar question about designing Airline Management System can be found on Grokking the Object-Oriented Design Interview course, you can go through that lesson to learn more about how to deal with such a question.

Problem 7: How do you Design Parking Garage?

This is another popular object oriented design and system design question which is often asked on FAANG companies. Many people said that this was asked to them during Amazon interview.

Most of the time interviewer will just give you vague requirement like this and you need to ask questions to clarify like how it should behave like how many parking slots, how a slot is taken, reserved or released etc.

If you need help to solve this problem, you can always checkout this video from Exponent’s YouTube channel.

If you don’t know Exponent is specialized in FAANG interview prep and they have an excellent System design course which has helped many people to clear System design interviews on FAANG companies.

Problem 8: Design a Trade Position Aggregator or Portfolio Manager?

You need to design a system where trades are fed at real time and you need to calculate live position by aggregating buy and sale trades for each symbol. You also need to allocate trades on accounts which is part of trade.

Here are rules and constraints you need to follow while designing this system:

1. When Direction is Buy and operation is NEW or AMEND, you need to increase the position as your exposure increases.

2. When Direction is Sell and operation is CANCEL, you need to increase the position as your exposure is not reducing.

3. When Direction is Buy and operation is Cancel reduce position;

4. When Direction is Sell, and operation is NEW or AMEND, reduce positions.

If you need a solution, you can see this tutorial where I have solved this question in Java, step by step.

Problem 9: How do you design a Distributed Message Queue?

This is another interesting Object oriented design question which is commonly asked during System design interviews. In this problem you need to design a distributed message queue.

Here are high level requirement:

Producers send messages
Consumers consume messages
Messages can be consumed repeatedly or only once

How will you approach this problem? To give you an hint, here is a nice diagram from ByteByteGo and Alex Xu, author of one of the most popular System design interview book called System Design Interview — An insider’s guide

Problem 10: How do you Design a Library Management System in Java or your favorite programming language?

This is another interesting problem to test your object oriented design skill, in this problem you need to design a library management system which should allow you to

Add new book,
Rent or issue a book to readers,
Send reminders when due date is near
and also print a report of overdue books.
It should also provide search functionality so that readers can find books easily.

This is a massive OOP Design problem and not easy to solve but not difficult as well. But if you need guidance, you can checkout the solution which is part of Educative’s Grokking the Object-Oriented Design Interview course but its freely available.

Problem 11 — How do you design a Blackjack game?

If you have played card games then you will be familiar with popular Card game now you need to use your object oriented programming skill to design and create a Blackjack game in Java or your favorite programming language.

The Grokking the Object-Oriented Design Interview course on Designgurus.io has a solution of that but its not free but don’t worry, here is a nice YouTube tutorial which will teach you how to create Blackjack in Java.

Best System Design and Object Oriented Interview Resources

If you need more resources like books, and online courses to prepare for the System design Interview here are my recommendations:

Thanks for reading this article so far. If you like these Object-Oriented Design Questions, then please share it with your friends and colleagues. If you have any questions or doubt then, please drop a note,

P. S. — If you need more questions, I suggest you check out the Grokking the Object-Oriented Design Interview course on Educative, an interactive learning platform. This course is a complete guide to master the OODI. It is designed by the hiring managers of Google, Facebook, Microsoft, and Amazon and contains solutions to some of the frequently asked object-oriented design questions from these tech giants.

Grokking the Object Oriented Design Interview - Learn Interactively

Object-oriented design has always been a critical part of the software engineering interview process. Most of the…

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Should You Join Frontend Masters to Learn Web Development in 2026? Review

2026-04-25T21:20:43.624-07:00

Hello guys, if you want to learn Web Development, I mean both frontend and backend and wondering whether Frontend Masters is a good place for that then you have come to the right place.

Learning web development can be overwhelming, especially with countless tutorials, bootcamps, and online courses available.

Even with experience struggled to find a platform that offered high-quality video lessons, expert instructors, and a structured learning path — until I discovered Frontend Masters.

I first come across this platform during COVID when I had lot of free time and I wanted to brushup my skill and learn new stuff. When I saw the promo, I was truly impressed with their production quality and content.

I had tried so many video courses by them on Udemy, and Coursera and watched countless videos on YouTube but they were nothing as compared to the quality of Frontend Masters.

With its in-depth courses taught by industry leaders, hands-on exercises, and up-to-date curriculum, Frontend Masters has become a top choice for aspiring and experienced developers alike.

But is it still the best platform to master web development in 2026? Let’s break down its strengths, weaknesses, and whether it’s worth your time and investment.

Learn JavaScript, React, and TypeScript to Node.js, Fullstack, and Backend

Advance your web development and software engineering skills from front-end to full-stack!

frontendmasters.com

Why Frontend Masters is a Good Place to Learn Web Development

Yes, Frontend Masters is widely considered a high-quality platform for learning both frontend and backend web development, especially if you are aiming for depth and up-to-date industry practices.

Here’s a breakdown of what makes it a good (or not-so-good) choice depending on your goals:

1. Expert Instructors from the Industry

Courses are taught by seasoned professionals from companies like Google, Netflix, Microsoft, and Stripe. For example:

Brian Holt (Neon) teaches frontend and full-stack topics.
Kyle Simpson (author of You Don’t Know JS) teaches JavaScript deeply.
Scott Moss (Netflix) teaches backend, GraphQL, and full-stack apps.

You can see all of their teachers here

Get to know Frontend Masters teachers — Learn from the best!

Leaders in front-end and software engineering, you’ll love learning from the Frontend Masters teachers.

frontendmasters.com

2. Modern and In-Depth Curriculum

The platform offers more than just foundational tutorials — it dives into production-level tools and workflows used by top engineering teams:

Backend: Use Go, Node.js, C#, Java, and C to create APIs, connect to databases like Postgres and SQLite, and work with Docker.
Tools & DevOps: Improve with Git, VS Code, containers, and CI/CD workflows.
Computer Science: Learn algorithms, system design, and even build your own compiler or virtual machine.
AI & Modern Tech: Build apps with OpenAI, use Tensorflow.js, and develop real AI agents.

3. Learning Paths

Frontend Masters also offers well-curated learning paths such as:

Beginner — to become a career ready developer
Professional — to become a senior web developer
Expert — to become a lead/staff engineer
Computer Science for Web Developers — learn DSA with JavaScript
Fullstack to Backend — become a server side developer with focus on frontend
Design to Code — to improve coding.

These paths are structured from beginner to advanced, making them ideal if you want to learn systematically.

You can see all career path here.

They also have Topic Paths to focus on a specific area in web development. For example, you can take a JavaScript topi path to become a master in JavaScript or Node.js topic path to build Web API and applications with Node.js.

Here are all the topic paths available on Frontend Masters

4. Focus on Deep Understanding

Unlike YouTube or other beginner platforms, Frontend Masters emphasizes deep understanding, which is great if you’re tired of surface-level tutorials and want to really master web development.

5. Practice Projects and Workbooks

Many courses come with downloadable workbooks and live coding projects so you can practice along, which is critical for real learning.

You can further see here to see all its features

Things to Consider Before You Subscribe

Now, we know that while Frontend Masters is a great place to learn web development, got great courses and teachers but there are still few things which we need to checkout.

1. It’s Not Free

Frontend Masters is a paid platform, with plans starting at around $39/month or $390/year. There’s no free trial, but they do offer some free courses and previews.

In fact, their free plan give you instant, lifetime access to their 5 popular courses. You can learn directly from developers at leading tech companies

Frontend Masters Free Account | Get Started with JavaScript, CSS, & HTML and Front-End Web Dev

Learn to build websites and become a front-end web developer with five free professional courses on HTML, CSS and…

frontendmasters.com

2. More Developer-Focused than Designer-Focused

If you’re looking for visual design, UI/UX, or Figma-type courses, the platform is not ideal. It leans heavily toward engineering skills, not design aesthetics.

3. Assumes You’re Committed

This isn’t a beginner-friendly “learn HTML in 10 minutes” kind of site. The courses can be intense, so it’s better suited for learners who are serious about becoming professional frontend and backend developers.

8 Best Frontend Masters Courses to Start With (Frontend + Backend) in 2026

Now, let’s see their best courses which you can join to learn both frontend and backend development

Frontend:

For Frontend development you can start with Kevin’s CSS and Website development course and then move on to web development bootcamp course by Brian.

Write CSS like a Pro | Build a Responsive Site from Scratch

Use custom properties and the latest responsive design techniques to build and deploy a website from scratch!

frontendmasters.com

Backend:

For backend development you can start with Melkey’s Go course if you want to learn a modern programming language and Brian’s SQL course for learning SQL.

Become a Professional Go Developer | Build Complete APIs with Authentication, Docker & Postgres

Learn Go by building a real application from scratch! Create scalable APIs, connect to Postgres with Docker, implement…

frontendmasters.com

Pricing

Here’s a detailed comparison of Frontend Masters pricing with other popular web development platforms like Udemy, Educative, Codecademy, Coursera, and freeCodeCamp to help you make an informed decision:

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1. Frontend Masters

Cost: $390/year (no free trial, but free sample courses available)

Pros:

Expert instructors (e.g., engineers from Netflix, Microsoft)
Deep dive into JavaScript, React, Node.js, and CS concepts
Well-structured learning paths
Course completion certificates.

Cons:

Higher price than others

You can learn more about Frontend Masters pricing here

Pricing

200+ Courses, Learning Paths, & Mobile Apps for “On the Go” Learning Elijah Manor Austin Akers Nitya Narasimhan, PhD…

frontendmasters.com

2. Udemy

Cost: $10–25 per course on discount (frequent sales), or $30/month with Personal Plan

Pros:

Massive library, wide range of topics
Lifetime access to purchased courses

Cons:

Quality varies by instructor
Less structured than other platforms

You can find more about personal plan here

Review — Is the Udemy Personal Plan Worth It?

Is Udemy’s Personal Plan better than buying individual courses?

medium.com

3. Educative.io

Cost: $16.66/month (billed annually) or $49/month

Pros:

Text-based courses with live coding environments
Great for full-stack and system design
Excellent interactive coding experience

Cons:

No video content
Some content may feel dry without visuals

4. Codecademy

Cost: $29.99/month or $179/year for Pro

Pros:

Hands-on, beginner-friendly
Tracks and projects
Good for HTML, CSS, JavaScript basics

Cons:

Limited depth in advanced topics
Web-based IDE can feel restrictive

5. Coursera (Coursera Plus)

Cost: $59/month or $399/year

Pros:

Taught by universities like Stanford, University of Michigan
Includes certifications
Courses from Meta, Google, IBM, etc.

Cons:

Video + quizzes format — not fully interactive
Not always project-based

6. freeCodeCamp

Cost: Free

Pros:

100% free and open-source
Hands-on projects and certifications
Huge community

Cons:

Text-heavy format
Not as structured for deeper specialization

So, which one you should choose when it comes to learning web development in 2026?

Here is my take

If you want to Deep dive into modern web dev then choose Frontend Masters.
If you need affordable and beginner friendly courses then you can choose Udemy or CodeCademy.
If you need interactive and hands-on courses, then Educative.io is best option.
If you need courses with certification from big companies and top universities then you should go for Coursera Plus
And, if you need a free, community driven learning then freeCodeCamp can be a great place.

Though for overall learning, I think FrontendMasters is best and with 17% discount on their annual plan, I think its worth it.

Here is the link to join — FrontendMasters

Is Frontend Masters Worth It for Learning Web Development in 2026?

Yes, absolutely — if you’re serious about becoming a professional web developer and want access to up-to-date, in-depth, expert-led courses. I really liked their high quality video courses, which is like movie but full of important information.

It’s a particularly good fit if:

You want to go beyond basic tutorials.
You care about performance, architecture, and scalability.
You want to build a solid full-stack foundation.

If you’re still testing the waters, you might want to try their free courses first or start with something lighter like freeCodeCamp or The Odin Project — and come to Frontend Masters once you’re ready to go deep.

And, if you already made your mind then you can join Frontend Masters now and even get a 17% discount on their annual plan.

Learn JavaScript, React, and TypeScript to Node.js, Fullstack, and Backend

Advance your web development and software engineering skills from front-end to full-stack!

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Other Frontend Masters Resources you may like to read

Thank you for reading this article till the end. If you like this course then please share with your friends and colleagues. If you have any questions or doubts then feel free to ask.

P. S. — If you are keen to level up your frontend skills then joining frontend master can be a great first step as they have awesome courses to learn valuable frontend skills, you can join Frontend Masters now and even get a 17% discount on their annual plan.

Pricing

200+ Courses, Learning Paths, & Mobile Apps for “On the Go” Learning Elijah Manor Austin Akers Nitya Narasimhan, PhD…

frontendmasters.com