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Software Engineer - Full Stack, 3Gimbals

Remote, United States

3GIMBALS is seeking a Full-Stack Software Engineer with a strong front-end focus to help design, build, and deliver capabilities for OMEN™, our multi-domain data fusion and analytics platform. This role is ideal for an engineer with strong front-end development experience who is also comfortable working across the full application stack.

The Full-Stack Software Engineer will build responsive, intuitive user experiences using TypeScript and React, develop and integrate backend services and APIs using Python and FastAPI, and take features from initial design through deployment and operation in AWS. The position works closely with developers, analysts, and subject matter experts to translate complex mission and user requirements into practical software capabilities.

As part of a small, multidisciplinary team, this role provides meaningful ownership of the features developed and the opportunity to influence both the user experience and technical direction of the platform.

Key Responsibilities

Design, develop, and maintain responsive, user-facing applications using TypeScript and React.
Translate complex workflows, data, and analytic capabilities into intuitive and effective user experiences.
Design, build, and maintain RESTful APIs and backend services using Python and FastAPI.
Integrate front-end applications with backend APIs, data services, and other OMEN platform capabilities.
Own software features throughout the development lifecycle, from requirements and technical design through implementation, testing, deployment, and sustainment.
Design and manage database schema changes and migrations using Alembic.
Build and maintain GitLab CI/CD pipelines to automate testing and application deployment.
Deploy, monitor, troubleshoot, and scale applications in AWS environments.
Write clean, maintainable, well-tested, and documented code.
Participate in code reviews, architecture and design discussions, and technical planning.
Collaborate with developers, analysts, subject matter experts, and other stakeholders to understand user needs and deliver effective solutions.
Contribute to engineering standards, development practices, and continuous improvement across the OMEN team.

3–5 years of professional software engineering experience developing production applications.
Strong proficiency in Python.
US Citizenship
Professional experience developing modern front-end applications using TypeScript and React.
Hands-on experience developing APIs and backend services using FastAPI.
Experience managing database schema migrations using Alembic.
Experience using GitLab for source control and CI/CD pipelines.
Experience deploying and operating applications in AWS.
Solid understanding of software design principles, testing, debugging, and application performance.
Demonstrated ability to develop and deliver features across both the front end and backend of an application.
Strong written and verbal communication skills and the ability to collaborate effectively within a multidisciplinary team.

Junior Machine Learning Engineer, HFT Architecture

Remote, Worldwide

HFT Architecture builds short-horizon price prediction and the trading system around it. This role works on the pipeline that turns order-book records into validated models, next to more experienced engineers: data preparation, experiments end to end, and the checks that keep the future out of a training set.

Fully remote, from anywhere in the world. Junior.

Base salary: USD 125,000–155,000 a year.

To apply: a link to your résumé, LinkedIn or GitHub, and one sentence on any of our articles. No file, no cover letter.

Apply: https://hftarchitecture.com/careers/junior-machine-learning-engineer?utm_source=pythonorg&utm_medium=jobboard&utm_campaign=careers-2026-10

You write Python every day, with tests; can explain the machine learning basics, including why ordinary cross-validation breaks on time series; and have one project of your own you can show and talk through.

Machine Learning Engineer, HFT Architecture

Remote, Worldwide

HFT Architecture builds short-horizon price prediction and the trading system around it. This role builds the pipeline from raw order-book records to a fitted, validated model: data preparation, features, training and out-of-sample measurement, reproducible run to run, with leakage controls built in.

Fully remote, from anywhere in the world. Middle+ to senior.

Base salary: USD 180,000–240,000 a year.

To apply: a link to your résumé, LinkedIn or GitHub, and an answer to one question about our article "Why Your Market Maker Loses Money". No file, no cover letter.

Apply: https://hftarchitecture.com/careers/machine-learning-engineer?utm_source=pythonorg&utm_medium=jobboard&utm_campaign=careers-2026-10

You have built and run machine learning systems yourself, write Python with tests and versioned data, handle time series without leakage, and work with tens of millions of rows a day on ordinary hardware.

Python Backend Engineer, Uvik Software

Tallinn, Harju County, Estonia

Location: USA & LATAM | Remote

Employment Type: Contractor, Full-time

What You’ll Do:

Design, develop, and maintain backend services and RESTful APIs using Python, Flask, or FastAPI
Build clean, maintainable, and scalable solutions following Python best practices and PEP8
Work with SQL databases, particularly PostgreSQL
Develop unit and integration tests using Pytest
Create and maintain API documentation using Swagger/OpenAPI, Insomnia, or similar tools
Integrate Large Language Models (LLMs) and AI-powered functionality into backend applications
Work with Git-based development workflows and participate in code reviews
Debug, troubleshoot, and improve existing backend systems
Contribute to CI/CD processes and development automation
Collaborate with engineers and other team members in an Agile environment
Communicate effectively with an international team in English

What We Offer:

Paid vacation and sick leave
Equipment for comfortable work, if required
50% coverage of professional courses
Competitive compensation based on your skills and experience
Reliable and always-on-time payments
A supportive international team
Straightforward processes without unnecessary bureaucracy
100% remote, full-time cooperation

What We’re Looking For:

2–3+ years of commercial Python development experience
Strong knowledge of Python fundamentals
Hands-on experience with Flask and/or FastAPI
Experience developing and integrating REST APIs
Practical experience with SQL databases; PostgreSQL is preferred
Experience with unit and integration testing
Familiarity with Docker
Confident use of Git and Git-based development workflows
Familiarity with code-quality tools such as PyLint, Flake8, or similar
Experience or strong practical interest in integrating LLMs into backend applications
Ability to work in Linux and/or Windows environments
English level B2 or higher
Strong problem-solving skills, attention to detail, and a proactive approach
Ability to work independently and effectively within a distributed team
Based in the USA or LATAM

Nice to Have

Experience with CI/CD pipelines, such as Jenkins or GitLab CI
Experience with cloud platforms
Familiarity with Kubernetes
Experience with Jira, Crucible, or similar collaboration tools
Previous hands-on experience integrating LLM APIs or AI-powered features

Senior Staff Engineer - Origination & New Products, tem

Remote (UK / EU), Remote (UK / EU), Remote (UK / EU)

We're hiring a Senior Staff Engineer to lead a new three-person squad building product categories that don't exist at tem yet: deep integration into Rosso, pricing capability, and deal-risk tooling. This is a hands-on individual-contributor role, not people management. You design, build, and review the hardest parts of the system yourself, in Python, alongside the squad.

The stack is production-grade Python throughout: services built on AWS Lambda and API Gateway, state and events handled with DynamoDB and EventBridge, all wired together as event-driven architecture. You will write Python daily, both for new product integrations and for the pricing and risk logic that sits behind them.

Compensation: GBP 117,850 (or local equivalent) plus equity. Benefits include 25 days holiday plus your birthday off, a remote/wellbeing budget, and fully remote working with no internal meetings on Friday afternoons.

Apply: https://jobs.ashbyhq.com/tem?utm_source=PythonOrg

Requirements:

Proven technical leadership at Staff or Senior Staff level, with evidence of leading ambiguous initiatives to real business impact
Comfortable operating without a spec, shaping an undefined opportunity into something buildable
Production experience with Python at scale, and fluency with AWS serverless services (Lambda, API Gateway, DynamoDB, EventBridge)
Sound commercial judgement: able to reason about deal risk and revenue impact, not just delivery
Track record leading a squad through technical direction and mentorship, without formal people-management responsibility
Strong written and verbal communication with commercial stakeholders

Bonus points:

Experience in energy, fintech, or another regulated, high-stakes commercial domain
Experience taking a product or company into a new international market
Exposure to workflow orchestration or real-time pricing engines

ML Engineer, Micro1

Remote, Worlwide, Worldwide

We are looking for highly skilled Machine Learning Experts to contribute to an AI training project involving model development, training and inference systems, numerical computing, performance optimization, and Python.

The work involves creating, solving, reviewing, and validating challenging machine-learning engineering tasks. A representative task may require implementing or modifying a model, constructing a reproducible training or inference workflow, optimizing memory or throughput, debugging numerical or system-level failures, and verifying that the resulting implementation satisfies objective correctness and performance requirements.

This role is designed for experienced ML engineers and researchers who understand the systems beneath high-level APIs. Candidates should have meaningful practical experience with multiple tools from the modern ML stack and be able to explain what they personally built, optimized, or operated.

What You’ll Work On

Develop and validate machine-learning models, training pipelines, inference systems, and supporting infrastructure.
Implement model components, data pipelines, evaluation systems, and numerical methods.
Build reproducible programmatic workflows using Python and command-line tools.
Work with tensor operations, automatic differentiation, model architectures, tokenization, batching, and generation.
A master’s degree or PhD in Computer Science, Machine Learning, Artificial Intelligence, * Applied Mathematics, Statistics, Engineering, or a closely related quantitative discipline.
Strong professional or research experience in machine learning.
Practical proficiency with Python.
Meaningful experience with at least two relevant ML frameworks, libraries, or inference tools.
Strong understanding of model training, evaluation, numerical computation, or inference.
Ability to debug ML systems beyond surface-level API usage.

Ability to explain implementation decisions, performance trade-offs, and failure modes clearly. Experience building reproducible technical workflows.

Relevant tools may include:

PyTorch
JAX
NumPy and SciPy
SGLang
vLLM
llama.cpp
Hugging Face Transformers
Hugging Face Tokenizers

Equivalent tools may also be considered when the candidate demonstrates directly relevant depth.

Experience at a well-established technology company, AI laboratory, research organization, or other recognized engineering environment is strongly preferred. Exceptional open-source or academic experience may also qualify.

Process

Apply to the role and complete the screening questions.
Complete an AI interview of approximately 30 minutes.
Complete the hiring manager review.

Compensation Structure

Compensation is output-based. Experts are paid per task that meets the project specifications. The time required to complete each task may vary depending on the expert’s experience and workflow.

Software Engineer, Full Stack (Python, Java, Rust, C#, C++), Gridnaut Recruiting

Remote, Remote, Worldwide

Gridnaut Recruiting is hiring a remote Software Engineer, Full Stack for a flexible hourly contractor engagement supporting a leading AI lab.

This is a Python-forward full-stack role: Python is explicitly named as a core language for the position, alongside Java, Rust, C#, and C++. You will contribute to model-training support, evaluation, and structured task review while working across backend services, frontend (React), databases, and cloud systems.

Work is fully remote, hourly, and flexible. Pay is $50–$65 per hour (USD), depending on experience and demonstrated skill.

3+ years of production software experience at a top-tier company
Proficiency in Python; experience with Java, Rust, C#, or C++ is also relevant
Working proficiency in a second listed language
Full-stack experience including backend, frontend (React), databases, and cloud
Availability for the engagement's required schedule, up to 40 hours per week
Remote availability for an hourly contractor engagement

SENIOR Back-End Python Engineer - FULLY REMOTE-WORLDWIDE, ActivePrime, Inc.

REMOTE, REMOTE

As a senior software engineer, you'll join a team tackling genuinely hard problems: distributed data processing at enterprise scale, complex deduplication algorithms, and systems that need to handle billions of records without breaking. The kind of challenges that require actual engineering thinking, not just tutorial-level code.

Ready to tackle complex engineering challenges that impact how the world's largest companies manage their data?

Very proficient with Linux at the terminal level
Test-driven development (TDD) and pytest proficiency
7+ years Python experience
Polars experience
PostgreSQL expertise: schema design, optimization, advanced queries
Familiarity with, and adherence to, PEP guidelines and Python coding standards
RESTful API development and design best practices
Scalable architecture design for high-volume data environments
Security practices and vulnerability prevention
Bug identification and resolution with local testing
Thoughtful development centered around performance, deeply optimized code, and proper code organization
Git version control with branching strategies
English fluency (written/verbal)
Cover letter requirement with specific opening line
Previous experience working for a US-based company.

Nice to have

Experience with AWS (devops).

Who we are NOT looking for

Agencies
People who are looking for a side “hustle” or are starting their own business
Anyone with less than 7 years of experience

If you are a fit for this position, please start your Cover Letter with I AM A SENIOR BACK END PYTHON ENGINEER WITH 7+ YEARS OF EXPERIENCE in all CAPS

To be considered please fill out this form: https://forms.clickup.com/2257368/f/24wer-69717/12MWQYCOXQEFIYE71Y

Agentic Python Engineer, Evaboot

Remote, Remote/Worldwide, Remote/Worldwide, Remote

Evaboot turns LinkedIn Sales Navigator searches into clean, verified prospecting lists. Demo: https://www.youtube.com/watch?v=khYgyDlo2Iw

We are bootstrapped, $2.2M+ ARR, a team of 5, and remote since day one.

What we are doing: building self-improving loops and agentic products.

Agentic products you will work on:

SDR agent (Sales Navigator agent, emailing outreach agent) Self-improving loops you will build:

Coding Support SEO & content Analytics Company-wide systems (memory, tooling) You will work directly with the co-founder & CEO.

What is guaranteed: an intense execution pace and an exponential learning curve. A zero-nonsense environment, focused mostly on results and KPIs.

Autodidacts are welcome. Two weeks maximum from apply to reply.

Compensation: $70,000 - 120,000 USD. Full-time, 100% remote.

Strong Python engineering Power user of agentic coding Bonus points:

AWS Agentic plumbing & observability

Senior Python Developer, Adzuna

Remote (within 2 hours of London timezone), Remote

Contract type: Contractor

Contract hours: Full-time

Location: Remote (within 2 hours of London timezone)

Salary: €60k - €70k

About Adzuna

Adzuna is a job search engine that lists every job, everywhere. From our launch in the UK in 2011, we now have tens of millions of visitors a month and are busy conquering the world from our HQ in West London alongside our remote teams - helping millions of people find better, more fulfilling jobs. We already have a suite of AI-powered tools (such as ValueMyCV, Prepper and ApplyIQ) built by our talented team and their passion for building new AI-powered tech for job seekers. We're a commercially minded team that moves fast, takes ownership and loves what we do.

About the Role

This is a fantastic opportunity for a high-impact Senior Python Developer and Tech Lead to join our fast-moving team. In this pivotal leadership role, you will work closely with our Head of Tech/AI coding to migrate this team and the technology they own to a single, high-performing team working on our new Python-based platform using Agentic AI coding techniques. You will provide technical stewardship across our full stack, architecting robust backend services and guiding the development of cutting-edge AI products. Working alongside Product Managers and Data Scientists, you will lead the transition of machine learning prototypes into production-ready applications for millions of users, while mentoring engineers and driving the long-term technical strategy for our AI-powered tools.

What You'll Do

Technical Leadership & Mentorship: Act as a tech lead in one of our tech teams, unifying disparate development silos and fostering a culture of excellence through code reviews, architectural guidance, and mentorship of a small team of engineers.
Architectural Stewardship: Lead the design and implementation of scalable backend API endpoints and LLM pipelines, ensuring the seamless integration of agentic frameworks into our production stack.
Data Strategy: Architect high-throughput data pipelines to move clean, processed data between databases and user interfaces, maintaining system integrity and performance.
Infrastructure & Security: Engineer secure infrastructure for user authentication, session persistence, and memory caching while optimizing AWS environments for high availability.
Strategic Execution: Drive the migration from legacy systems to our new Python stack, making critical decisions on maintenance mode vs. new development to maximize business value.

Tech Stack Includes

Languages & Frameworks: Python, Spark, LLMs & LLM coding tools
Frontend: React, HTML, CSS (Tailwind)
AWS Ecosystem: EC2, S3, Lambda, Step Functions, RDS, Athena, Kinesis
Databases & Search: PostgreSQL, MySQL, SOLR

While we look out for all of these skills, we do not expect experience in all of them. We value a strong foundation in core programming principles and a genuine eagerness to learn.

What We're Looking For

Experience: Extensive commercial software development experience with a focus on Python, including a proven track record in technical leadership or lead developer roles.
Location: Fully remote (must be located within a 2-hour timezone of London and able to work standard UK business hours).
Right to Work: This is a permanent, long-term role structured via a contractor agreement for international remote compliance. Candidates must have the legal right to work remotely as an independent contractor in their country of residence. We are unable to provide visa sponsorship for this position now or in the future.
Communication: Professional proficiency in English (both written and verbal) to collaborate effectively with a global team.
Education: A technical degree (2:1 or equivalent) in Computer Science, Software Engineering, or a highly relevant field.
Core Coding Skills: Strong understanding of Python fundamentals and object-oriented programming.
Execution: Record of writing clean, maintainable Python code into live, user-facing environments.
Databases: Strong expertise in MySQL and/or PostgreSQL and relational databases.
Cloud & Tools: Familiarity with AWS services and Git version control.
Strategic Mindset: A results-driven thinker who focuses on commercial outcomes and can serve as a subject matter expert for senior leadership regarding the Python ecosystem and AI/ML frameworks.
AI Applications: Experience with coding LLMs into production applications, and effectively utilising agentic AI coding in your daily workflow.

Nice to Have

Frontend Coding Skills: Familiarity with HTML, CSS (Tailwind) and React to assist in building fullstack user interfaces.
Browser Automation: Understanding of web scraping techniques, DOM parsing, and bypassing common bot-detection. Experience with browser automation and testing tools (e.g. Playwright, Selenium).
Portfolio: An active GitHub profile showcasing examples of your work, or personal projects.

Agentic Python Engineer, Evaboot

Remote, Remote, Worldwide

Evaboot | Agentic Python Engineer | REMOTE | Full-time | $70-120K USD

Evaboot turns LinkedIn Sales Navigator searches into clean, verified prospecting lists. Demo: https://www.youtube.com/watch?v=khYgyDlo2Iw

Bootstrapped, $2.2M+ ARR, team of 5, remote since day one.

What we're doing: building self-improving loops and agentic products.

Agentic products you'll work on: SDR agent (sales navigator agent, emailing outreach agent).

Self-improving loops you'll build: coding, support, SEO & content, analytics, and company-wide systems (memory, tooling).

You will work directly with me (co-founder & CEO).

Requirements: strong Python engineering, power user of agentic coding.

Bonus points: AWS, agentic plumbing & observability.

What's guaranteed: intense execution pace & exponential learning curve. Zero bullshit environment, we focus mostly on results and KPIs.

Autodidacts are welcome.

Two weeks maximum from apply to reply.

Apply right here: https://forms.gle/NM9BLJyuS8FNitYc8

Requirements: strong Python engineering, power user of agentic coding.

Python developer, Eleks

Poland, Lviv, Ivano-Frankivsk, Ternopil, Uzhhorod, Chernivtsi or Kyiv, Ukraine/Poland

ABOUT PROJECT

Our client is one of the leading financial services companies in the USA. The project focuses on developing a large-scale platform for financial data management, enabling secure storage, processing, and delivery of business-critical financial data.

Offices to Apply in - Poland Ternopil Ivano-Frankivsk Lviv Kyiv Ukraine Krakow Chicago Las Vegas Argentina Croatia Uzhhorod Chernivtsi Zhytomyr Rivne Lutsk

REQUIREMENTS

4+ years of commercial experience with Python
Strong experience with Flask
Experience building RESTful APIs and web services
Experience with Java is a plus
Experience with Snowflake or Snowpark is a plus
Upper-Intermediate English or higher

RESPONSIBILITIES

Develop, test, and maintain reliable Python backend services and applications
Design and implement new features in collaboration with cross-functional teams
Build and integrate RESTful APIs using Flask
Write clean, maintainable, and well-tested code
Troubleshoot performance issues and resolve defects across development and production environments
Participate in code reviews and contribute to engineering best practices
Support application deployment, monitoring, and ongoing production maintenance
Continuously improve the codebase, development processes, and technical solutions

WHAT YOU WILL GET WITH ELEKS

Close cooperation with a customer
Challenging tasks
Competence development
Team of professionals
Dynamic environment with low level of bureaucracy

Python/DevOps Engineer, NordVpn/NordSecurity

Vilnius / Kaunas / Warsaw, Lithuania/Poland

DevOps Engineer Threat Protection

Full-time Hybrid

Vilnius / Kaunas / Warsaw

Learn & grow

Boost your skills via our extensive training programs (online and offline) & other resources. Benefit from mentorship and career-switch opportunities to grow within the company.

Work from anywhere

Recharge with a change of scenery – choose work from any location when you feel a need to power your creativity and drive.

Physical well-being

Fuel your active lifestyle with online workouts led by our Physical Well-Being experts. Unlock a variety of sports and wellness facilities, like gyms, swimming pools, and fitness classes, with the Multisport card.

Mental & emotional health

Nurture your mind with free psychologist consultations, dedicated mental health events, and premium access to top-rated wellness apps like Calm, Headspace, and Mindletic.

Premium healthcare

Receive private health insurance giving you peace of mind for your health needs.

Joyful moments – special treats

Celebrate life’s big moments with special gifts from us on your birthday, anniversary, and other major events, such as weddings or the arrival of a new family member.

Company events & team-building

Experience iconic Nord Security celebrations, team-buildings, and knowledge-sharing events, nurturing bonds that fuel our success.

Workation

Embark on a legendary company getaway abroad, filled with exciting activities, live concerts, engaging workshops, and epic time together.

Salary Range (Gross)

€3.6K – €5.8K per month

Main Responsibilities

Collaborate with the Threat Protection development team to build and automate infrastructure for the product
Write scripts to expand and maintain automated Code delivery and Release pipelines using Docker, Gitlab CI, AWS
Help build frameworks for automated unit/integration/E2E tests, as well as setting up various virtual test environments/services
Design and manage infrastructure for a multi-tenant distributed environment
Assist with service migration to and within cloud environments (S3, EC2, EMR, Kubernetes)
Ensure the application of best practices including but not limited to security, availability, and observability of the infrastructure.

Core Requirements

Experience as a DevOps, System or Infrastructure Engineer or a similar engineering role
Proficiency with Linux systems and tools; knowledge of Windows administration strongly appreciated
Working knowledge of Git and Git workflows
Experience with scripting languages (e.g. Shell, Bash, Python, etc.)
Experience implementing CI/CD principles, understanding of build systems and tooling (preferably Make, CMake, Conan, Ninja)
Understanding of software composition principles: compilation, linking, loading of binaries and dependency management in major operating systems
Knowledge of virtualization and containerization principles
Experience working with cloud technologies and tooling: Configuration as code (Ansible, Terraform), Dockerization, EKS/Kubernetes
Ownership mindset around your work and a desire for understanding of how systems interact including those outside your immediate area of expertise
Critical thinking with a high degree of professionalism, flexibility, and attention to detail.

What We Offer

Innovate with industry leaders
Work alongside global experts to build world-leading cybersecurity tools, impacting millions of users around the world.

Software Engineer (Remote), Softech Associate

Panama City Beach, Florida, United States

Join Softech Associate to build and ship real software for our clients. We are looking for engineers with strong fundamentals and excellent communication who want to grow on a remote-first team.

What we're looking for

Strong foundational knowledge of computer science and software engineering
Comfort with data structures, algorithms, system design, and clean coding principles
Ability to explain technical concepts clearly and logically
Advanced-level English communication skills
Confidence and clarity when reasoning through technical problems

Responsibilities

Build and maintain real client projects across the stack
Participate in system design discussions and coding tasks
Collaborate in mock interviews and technical discussions to grow as a team
Communicate progress and trade-offs clearly with the team and clients
Write clean, tested, maintainable code

Preferred technical background

Frontend React · Next.js · TypeScript · JavaScript

Backend Node.js · Python · FastAPI · Flask · Express

Databases PostgreSQL · MongoDB · MySQL

Cloud AWS · Azure · GCP

Experience with AI tools, LLMs, or modern developer platforms is a plus.

Agentic Python Engineer, Evaboot

Remote, Remote/Worldwide, Remote/Worldwide

Evaboot turns LinkedIn Sales Navigator searches into clean, verified prospecting lists. Demo: https://www.youtube.com/watch?v=khYgyDlo2Iw

We are bootstrapped, $2.2M+ ARR, a team of 5, and remote since day one.

What we are doing: building self-improving loops and agentic products.

Agentic products you will work on:

SDR agent (Sales Navigator agent, emailing outreach agent)

Self-improving loops you will build:

Coding
Support
SEO & content
Analytics
Company-wide systems (memory, tooling)

You will work directly with the co-founder & CEO.

What is guaranteed: an intense execution pace and an exponential learning curve. A zero-nonsense environment, focused mostly on results and KPIs.

Autodidacts are welcome. Two weeks maximum from apply to reply.

Compensation: $70,000 - 120,000 USD. Full-time, 100% remote.

Strong Python engineering
Power user of agentic coding

Bonus points:

AWS
Agentic plumbing & observability

Lead Python Backend Engineer, Reef Technologies

Warsaw (fully remote), Poland

Lead Python Backend Engineer

We’re looking for Python backend engineers interested in team management to work on a trustless supercluster of performance-proofed GPU-enabled sandboxed docker container runners controlled by truly decentralized algorithms (not just PAXOS or RAFT).

Wow, that was a mouthful...

If you found it interesting, join Reef Technologies and lead a team of senior engineers who tackle complex technical challenges. With us, you’ll work on your own terms:

Contribute from wherever you like—we are fully remote
Set your own time commitment, as long as it’s at least 30h per week
See how we work in our handbook: github.com/reef-technologies/handbook
Influence the way we operate through our Sociocracy 3.0 decision-making process

Salary on a B2B contract:

75–90 USD or 300–380 PLN per hour, or 12600–15120 USD or 48000–60800 PLN a month if you work 40 hours per week (most of us work a bit less)
Flexible work schedule (as measured with a time tracker)
We automatically adjust rates based on inflation twice a year

So, what do you think? You don't even need a CV, just click here and shoot a few quick commands to apply.

We're looking for someone with 2+ years of team management and 5+ years of programming experience (including at least a year with Python, open source and significant personal projects do count).

Senior Python Backend Engineer, Reef Technologies

Warsaw (fully remote), Poland

Senior Python Backend Engineer

We’re looking for Python backend engineers to work on a trustless supercluster of performance-proofed GPU-enabled sandboxed docker container runners controlled by truly decentralized algorithms (not just PAXOS or RAFT).

Wow, that was a mouthful...

If you found it interesting, join Reef Technologies and tackle complex technical challenges like this on your own terms:

Contribute from wherever you like—we are fully remote
Set your own time commitment, as long as it’s at least 30h per week
See how we work in our handbook
Influence the way we operate through our Sociocracy 3.0 decision-making process

Salary on a B2B contract:

45-70 USD or 180-280 PLN per hour
Flexible work schedule (as measured with a time tracker)
We automatically adjust rates based on inflation twice a year

So, what do you think? You don't even need a CV, just click here and shoot a few quick commands to apply.

We're looking for someone with 5+ years of programming experience, including at least a year with Python (including opensource and significant personal projects).

Python Backend Engineer, Constelli Signals

Hyderabad, Telangana, India

We are hiring a Python Backend Engineer to take ownership of high-throughput backend services. You will work alongside our front-end and C# application teams to build the infrastructure that ingests, processes, and routes real-time data streams across our platforms.

This role is for someone who enjoys asynchronous Python, complex data-flow problems, and the discipline of building production systems that need to run reliably under sustained load.

Experience: 4+ years of professional backend software engineering experience, primarily in Python.

Asynchronous Python: Strong working knowledge of asyncio and concurrent programming patterns for high-throughput I/O.

API Frameworks: Production experience with FastAPI (or comparable async frameworks such as Starlette, aiohttp, or Sanic) and pydantic-based schema validation.

Message Brokers: Hands-on experience with at least one event streaming or message broker platform — Apache Kafka, RabbitMQ, NATS, or equivalent.

Databases: Proficient with PostgreSQL and capable of writing optimized SQL; comfortable with schema design, indexing, and query profiling.

Time-Series Data: Working familiarity with time-series databases (e.g., TimescaleDB, InfluxDB, QuestDB) and the trade-offs of heavy-write workloads. Networking: Solid grasp of TCP/UDP, WebSockets, and HTTP/REST; able to debug at the protocol level when needed.

Platform & Tooling: Comfortable Git-based workflows.

Testing & Quality: Demonstrated practice with pytest, unit and integration testing, and CI pipelines.

Senior Full-Stack Engineer [Full Time; 100% remote; US-only], Hive Collective

Anywhere, Anywhere, USA

The Role

You'd be joining a lean, high-leverage engineering team tackling the complexity of legal software — not by pushing longer hours, but by getting genuinely good at working alongside AI. This isn't a "we occasionally use ChatGPT" team. The group is actively figuring out how to hand repetitive engineering work to AI so people can spend their time on the problems that actually need human judgment.

If you like tight feedback loops and think of AI as a real engineering collaborator rather than a novelty, this is that kind of team.

Compensation, Benefits & Culture

Founded by two repeat entrepreneurs who set out to build a company without the usual startup burnout culture — their previous venture picked up multiple workplace-quality awards.

The team protects:

A sustainable pace
Long stretches of uninterrupted deep work
A light meeting calendar

Comp: USD $135,000 - $185,000 DOE, equity grant appropriate to the role, standard ~40-hour week.

Benefits:

Fully remote — work from anywhere
Medical, dental, and vision for you and your family
Annual stipends toward learning/development and personal wellness
Retirement plan with an employer contribution regardless of what you personally contribute
Flexible PTO (vacation, sick time, holidays)
Paid parental leave for either parent

What You'll Do

Help push the engineering org toward an AI-native way of building software
Keep improving internal dev workflows — using AI to ship faster, automate regression coverage, and hold the line on code quality
Design, build, ship, and support full-stack systems end to end
Work cross-functionally to deliver complete solutions spanning AI, modern web tooling, data stores, and backend platforms
Write code that's scalable, reusable, and easy for the next person to maintain
Make sure what you ship works well across browser and mobile
Build automated test coverage into new work as you go, not after
Take part in the on-call rotation
Partner with architects and peers on system design, dependency choices, and long-term maintainability
Split time between new feature work and keeping existing systems healthy
Communicate clearly with non-engineering stakeholders
Mentor more junior engineers and help set technical direction

What We're Looking For

7+ years of professional, commercial software development — shipping, deploying, maintaining, and debugging real production systems — plus:

A track record of actually improving how a team ships software using modern AI tooling (not just personal productivity hacks)
Hands-on experience with AI coding agents (e.g., tools like Claude Code, Codex, or similar) as part of your regular workflow
Experience pointing AI tooling at large-scale refactors, modularization, and code analysis
Solid Python / Django experience
Solid React experience
GraphQL experience (Apollo Client and/or Relay)
Comfort writing real unit test coverage

Nice to Have

AWS, Docker, Terraform
MongoDB, PostgreSQL
Git
Experience with third-party integrations — things like O365, DocuSign, generic REST APIs, Salesforce, SAML 2.0, or Zapier
Exposure to monitoring/alerting tooling

Who Does Well Here

Sharp analytical and problem-solving instincts
Real curiosity about LLMs and AI-assisted engineering — not just tolerance for it
Comfortable with shifting priorities and some ambiguity
Cares about the end-user experience, not just the code
Self-directed, high agency, high accountability
Takes pride in the craft and welcomes feedback
Communicates and documents clearly
Genuinely curious, always picking up new tools
Operates with integrity and sound judgment

Python Developer, Micro1

Miami Shores, FL, United States

Job Summary: In this role, you'll apply your expertise to help train next-generation AI systems. Your work will shape how models learn, reason, and perform through high-quality, real-world input. No prior experience in AI is required — your domain knowledge is what matters.

Key Responsibilities:

Design, develop, and optimize REST and GraphQL endpoints for scalable APIs.
Drive data validation, error handling, and security best practices within backend services.
Plan and execute database migrations, optimizations, and schema changes as needed.
Actively test new AI-powered models in Cursor, providing actionable feedback via incident reports, bug traces, and screenshots.
Participate in 4-day intensive testing bursts, exploring how AI models impact real coding workflows.
Engage thoughtfully with the research team in a dedicated Slack channel to discuss findings and propose improvements.
Submit detailed post-burst surveys, delivering insights on model performance and developer experience.

Restrictions

Telecommuting is OK

Agencies are OK

Requirements

3+ years of professional experience as a backend developer, with strong expertise in Python.
Proficient in building and maintaining RESTful and GraphQL APIs.
Advanced understanding of backend data validation, error handling, and API security.
Hands-on experience with database migrations, performance tuning, and schema design.
Extensive use of AI tools for coding; familiarity with Cursor is highly desirable.
Outstanding written and verbal communication skills, with a knack for clear incident and bug reporting.
Proven ability to thrive in fast-paced, confidential, and collaborative remote environments.

Preferred Qualifications:

Visible contributions to open source (e.g., GitHub stars or contributions).
Experience designing or evaluating experimental tooling and developer workflows.
Demonstrated enthusiasm for AI advancements in software development.

About the Company

micro1 matches companies with skilled, pre-vetted software developers worldwide.