Radosław Pietruszewski
Founding Software Engineer, Frontend Engineering Lead at Presidential Title Group
Warsaw, Masovian Voivodeship, Poland
Summary
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Senior🎓
Top SchoolRadosław Pietruszewski is a founding software engineer and frontend engineering lead with nearly two decades of hands-on experience and a decade-plus focus on frontend and cross-platform performance. He has served in leadership and CTO roles, guiding small, high-impact teams to ship fast, maintainable products while driving large-scale JavaScript refactors and architecture decisions. A maintainer and open-source author—best known for WatermelonDB with 10k+ GitHub stars—he blends deep React/React Native expertise with native iOS/macOS/watchOS skills and custom C++/NAPI/ObjC++ integrations. His technical toolkit spans React, Next.js, TypeScript/Flow, Electron, and AST transformation tooling (Babel, ESLint, jscodeshift), with a particular talent for profiling and performance-conscious architecture. Based in Warsaw, he pairs pragmatic engineering with conference speaking and a proven track record of turning complex cross-platform performance challenges into production-ready solutions. Colleagues rely on him for thoughtful process improvement and high-leverage technical leadership that scales teams and codebases.
15 years of coding experience
11 years of employment as a software developer
Master of Science, Master of Science at University of WroclawMaster of Science, Master of Science at Wroclaw University of Technology
German, Polish, English
Github Skills (50)
keyboard10
usb9
firmware9
arm9
rp20408
console8
atmel8
keymaps7
script7
bash7
avr7
python7
cli7
system-administration7
shell7
Programming languages (7)
Github contributions (5)
rtomaszewski/dotfiles
Apr 2013 - Oct 2017
Contributions:65 commits, 4 pushes in 4 years 6 months
rtomaszewski/tools
May 2011 - Aug 2014
Contributions:12 commits in 3 years 3 months
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