Stefan is a Principal Software Developer at Red Hat working on Kubernetes and OpenShift, with a focus on API machinery, extension points and developer tools as part of Sig API Machinery. He is one of the top-3 reviewers in the project (number of reviews). Stefan is a 2nd time GoogleSummer of Code mentor with CNCF, loves to teach and help people to learn. Before Red Hat he worked for Mesosphere on Kubernetes, Marathon and Spark. By trade, Stefan is a Mathematician and Computer Scientist, with a PhD in Mathematical Logic.