Štěpán Šimsa
Interim Engineering Manager at Rossum
Prague, Czechia
Summary
👤
Senior🎓
Top SchoolŠtěpán Šimsa is a Staff AI Research Engineer with 14 years of experience bridging rigorous ML research and production-grade engineering, currently driving proprietary model development and process improvements at Rossum in Prague. He moves fluidly between hands-on model building, roadmap and project leadership, and people enablement—recently serving as Interim Engineering Manager while remaining deeply technical. His background spans self-driving HD mapping at Woven Planet/Lyft and internships at Google and IST Austria, where his work contributed to a Nature paper on evolutionary game theory. A former IMO and IOI medalist and ACM ICPC World Finals silver medalist, he pairs strong mathematical rigor with practical system design, often focusing on whether architectural changes or more data yield the highest customer impact. He is known for clear communication, improving team workflows, and a habit of extracting non-obvious signal from complex systems.
14 years of coding experience
7 years of employment as a software developer
Master's degree, Computer Science, Master's degree, Computer Science at Charles University in Prague
Czech, English
Github Skills (26)
extraction10
benchmark9
python9
linter9
pure-python9
science9
computer-algebra-system8
static-typing8
computer-algebra8
algebra8
math7
typechecker7
kie7
obsidian5
nette5
Programming languages (2)
Github contributions (5)
simsa-st/contest24
Aug 2015 - Jul 2016
Contributions:36 PRs, 74 pushes, 39 branches in 10 months
rossumai/docile
Oct 2022 - Mar 2023
DocILE: Document Information Localization and Extraction Benchmark
Contributions:7 releases, 16 reviews, 71 commits in 4 months
benchmarkextractionkeykiekile
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