Stefan Frijters
Scientific Software Engineer at VORtech BV
The Hague, South Holland, Netherlands
Summary
🤩
Rockstar🎓
Top SchoolStefan Frijters is a Scientific Software Engineer with 14 years of experience building high-performance, reproducible scientific software for HPC environments. He combines deep computational physics background (PhD-level research in fluid dynamics) with hands-on development in C/C++, Fortran, Rust and Python, and expertise in parallelisation using OpenMP, MPI and emerging GPU backends. Stefan is passionate about typesafe and functional languages, Nix/NixOS-based reproducible workflows, and designing rigorous test suites that catch obscure bugs. He has led small teams, set up CI/CD and automated testing infrastructure, and translated Excel-based workflows into robust GUI tools, showing a knack for turning messy real-world processes into maintainable software. Preferring 32-hour work weeks and roles adjacent to cutting-edge science, he explicitly avoids adtech, fintech, crypto and fossil-fuel applications. A practical polyglot and advocate for functional programming, he quietly fostered a Haskell study group at his workplace to raise internal competence.
15 years of coding experience
10 years of employment as a software developer
Bachelor of Science (BSc), Physics, Bachelor of Science (BSc), Physics at Utrecht UniversityStedelijk Gymnasium Breda
Dutch, English, German
Github Skills (118)
parallel10
nix10
multithreading10
metal10
hip10
openmp10
gpu10
cpp10
opencl10
gpgpu10
nixos10
linux10
vendor10
oneapi10
nixpkgs10
Programming languages (10)
Github contributions (5)
SFrijters/nix-qemu-esp32c3-rust-example
Jan 2024 - Jul 2026
An example / test for https://github.com/SFrijters/nix-qemu-espressif
Contributions:1 PR, 99 pushes, 17 branches in 2 years 5 months
SFrijters/wordclock
Jan 2024 - Mar 2026
Wordclock Firmware
Contributions:2 PRs, 40 pushes, 7 branches in 2 years 2 months
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