Jakub Wiśniewski
Chief Senior React Developer at credi2
Toruń, Kuyavian-Pomeranian Voivodeship, Poland
Summary
👤
Senior🎓
Top SchoolJakub Wiśniewski is a Senior Frontend Engineer and current Chief Senior React Developer with nearly a decade of experience building scalable, test-driven web applications primarily using TypeScript, React, and Node.js. He has led major migrations and refactors—moving large codebases from Java and Redux to modern React stacks with Tanstack Router/Store and single-spa microfrontends—while driving accessibility, CI/CD, linters, and high unit-test coverage. His work spans fintech and healthcare platforms, where he balances UX improvements, performance optimizations, and maintainability (including reducing technical debt and route code splitting to speed initial loads). Known for mentoring peers and sharing testing best practices, he consistently elevates team quality and delivery. Based in Toruń, Poland, he pairs a pragmatic engineering mindset with a curiosity for emerging tools, summed up simply on GitHub as "JavaScript ❤️."
8 years of coding experience
13 years of employment as a software developer
Inżynier (Inż.), Informatyka, Inżynier (Inż.), Informatyka at Nicolaus Copernicus University
English
Github Skills (10)
movie4
vtt3
console3
subtitle2
xmake2
linux2
windows2
nsis1
cross-platform1
qt1
Programming languages (1)
Github contributions (5)
jakubrwisniewski/another-ws-server
Jan 2021 - Oct 2022
Contributions:1 release, 29 commits, 20 pushes in 1 year 9 months
jakubrwisniewski/tips
Jul 2021 - Jun 2022
Contributions:61 commits, 56 pushes, 2 branches in 11 months
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