Piotr Kowalski
Artysta Plastyk at Piotr Kowalski - Fotografia
Warsaw, Masovian Voivodeship, Poland
Summary
👤
Senior🎓
Top SchoolPiotr Kowalski is a senior frontend developer, trainer and creative technologist with 15 years of experience building complex web UIs and mentoring engineers across companies like Netflix, Sumo Logic and Box. He blends hands-on expertise in React, TypeScript, Node.js and GraphQL with a long track record of public training—designing curricula and delivering workshops for enterprises and community initiatives such as WarsawJS and ConFrontJS. As a former Head of Frontend at Cyfrowy Polsat he has led teams shipping large-scale consumer applications (including Smart TV platforms) and navigating platform-specific constraints. Beyond code, Piotr is a prolific content creator and speaker—running a popular blog, YouTube channel and photography studio—and he applies that visual sensibility to product UX and developer education. Recently he’s also been translating precision and craft into paper art as an origami artist, reflecting a knack for bridging technical rigor with tactile creativity. Based in Warsaw, he’s equally comfortable shaping developer experiences, teaching diverse audiences, and shipping production-grade frontend systems.
15 years of coding experience
11 years of employment as a software developer
Inżynier (Inż.) Informatyka, Inżynier (Inż.) Informatyka at WIT Academy
Stackoverflow
4,941reputation
440kreached
18answers
5questions
typescript
top-5%
rxjs
top-5%
javascript
top-5%
angular
top-5%
Github Skills (200)
testing10
e2e10
browser10
react-testing-library10
nodejs10
svelte-testing-library10
cache-api10
css10
component-testing10
expressjs10
behaviorsubject10
hammer10
fanpage10
js-plugin10
editor10
Programming languages (14)
Github contributions (5)
piecioshka/boilerplate-scss
Oct 2018 - Mar 2025
🍴 Starter with SASS: When you have problem how to compile *.scss files to *.css
Contributions:3 pushes, 1 branch in 6 years 6 months
sasscsscompile-scsscompilescss-files
piecioshka/html5-video-error-translator
Feb 2016 - Mar 2025
Contributions:33 pushes, 3 branches, 11 tags in 9 years 1 month
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