Karol Walasek
Senior Full-Stack JavaScript Developer at Walasek Informatyka
Warsaw, Masovian Voivodeship, Poland
Summary
👤
Senior🎓
Top SchoolKarol Walasek is a Senior Full-Stack JavaScript Developer with 10 years of experience building and operating production systems, particularly with Node.js, React and Debian-based infrastructure. He combines hands-on development with systems architecture and on-call system administration—managing everything from CI/CD and distributed messaging to Proxmox-backed AI compute clusters. As a former technical lead and co-founder, he has coordinated international teams, run hiring, and taken ownership of product takeovers and post-launch maintenance at CouponFollow. He’s comfortable across the stack and multiple languages, contributes open-source tools from his GitHub, and explores distributed systems, cryptography and blockchain in his spare time. An uncommon strength is his blend of low-level ops expertise (ZFS, vGPU, backup, billing) with product-focused engineering and long-term roadmap planning.
10 years of coding experience
14 years of employment as a software developer
Technician, Computer Science, Technician, Computer Science at Zespół Szkół Informatycznych im. gen. Józefa Hauke-Bosaka w KielcachMaster's Degree, Computer Science, Master's Degree, Computer Science at Kielce University of Technology
English
Github Skills (157)
windows10
game-development10
godot10
javascript10
game-engine10
linux10
js10
rocket10
macos10
nodejs10
open-source10
cardview8
structures8
postgresql7
testing7
Programming languages (9)
Github contributions (5)
walasek/node-reliable-udp
Jul 2018 - Oct 2019
DEPRECATED: TCP-like communication over UDP with integrated STUN/ICE.
Contributions:37 commits, 7 PRs, 24 pushes in 1 year 3 months
integratednetworkingcommunicationstunsctp
walasek/node-modularity
Jul 2020 - Oct 2022
A framework for modular JavaScript solutions.
Contributions:101 commits, 14 PRs, 54 pushes in 2 years 3 months
javascriptframeworkmodular
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