Stefan Hengl
Software Engineer at Sourcegraph
Berlin Metropolitan Area Germany
Summary
🤩
Rockstar🎓
Top SchoolStefan Hengl is a software engineer based in the Berlin area with eight years of experience building production-grade systems at companies like Sourcegraph, Zalando and SAP. His background blends applied research—earlier work as a research assistant in quantum information theory at ETH Zurich and deep learning R&D at SAP—with hands-on engineering in large-scale developer tooling and e‑commerce platforms. At Sourcegraph he contributes to developer productivity tooling, leveraging a strong foundation in backend systems and data-driven features honed at Zalando. Stefan’s trajectory from physics into software gives him a methodical, research-informed approach to problem solving and a penchant for turning complex algorithms into reliable, maintainable code.
9 years of coding experience
9 years of employment as a software developer
Master of Science (M.Sc.), Physics, very good, Master of Science (M.Sc.), Physics, very good at University of Freiburg
German, English, Portuguese
Github Skills (34)
src10
code-search10
sourcegraph10
api10
trigrams10
ai10
code-intelligence10
cli10
universal-ctags9
graphql9
docker-compose8
docker7
ctags6
jaeger6
distributed-tracing6
Programming languages (6)
Github contributions (5)
sourcegraph/search-blitz
Sep 2020 - May 2021
benchmark Sourcegraph.com search performance
Contributions:3 reviews, 9 PRs, 22 pushes in 7 months
sourcegraphbenchmarkingbenchmarkperformancebenchmarks
stefanhengl/histogram
May 2021 - Aug 2025
Contributions:2 pushes in 4 years 3 months
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