Head of Intelligent and Distributed Systems Department (Cologne, Berlin, Braunschweig, Bremen, and Oberpfaffenhofen) at German Aerospace Center (DLR). Research fields include provenance, decentralized systems, graph machine learning, explainable AI, software visualization, and software analytics. Co-founder of Medando, a startup that develops mobile apps for personalized medicine and self-tracking (Quantified Self). Co-Founder of Quantified Self Meetup Cologne. Chair of PyHPC and PyData Cologne. ♥ Python and my dog Garo (and missing Baldo).