Leona Gottwald
Senior Optimization Scientist
Berlin, Germany
Summary
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Rockstar🎓
Top SchoolLeona Gottwald is a Senior Optimization Scientist with 15 years’ experience designing and shipping high-performance mathematical optimization software. Based in Berlin, she currently develops the Hexaly Optimizer after a senior developer role on the commercial FICO Xpress Optimizer and research work at the University of Edinburgh and Zuse Institute Berlin. She authored the open-source MIP solver integrated into HiGHS, which serves as the default MIP solver in Matlab and SciPy—an indicator of both production-grade code and community impact. Leona combines academic rigor with product-focused engineering, routinely bridging research ideas and industrial solver implementations. Her background in computer science (M.Sc., Freie Universität Berlin) underpins a deep specialization in algorithms, solver internals, and performance engineering.
16 years of coding experience
3 years of employment as a software developer
Master of Science (M.Sc.), Informatik, 1,9, Master of Science (M.Sc.), Informatik, 1,9 at Freie Universität Berlin
German, English
Github Skills (42)
integer-programming10
parallel10
linear-optimization10
mixed-integer-programming10
simplex10
scip10
opus10
constraint-programming10
quadratic-programming10
high-performance10
julia9
monorepo9
php8
least-squares8
placement8
Programming languages (8)
Github contributions (5)
lgottwald/PaPILO
Feb 2020 - Jan 2021
Parallel Presolve for Integer and Linear Optimization
Contributions:4 reviews, 327 commits, 58 PRs in 10 months
linear-optimization
rgottwald/simd
Jul 2015 - Sep 2016
Contributions:5 pushes, 1 branch in 1 year 2 months
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