Piotr Stępniewski
Senior Front-end Developer at Betsson Group
Warsaw, Masovian Voivodeship, Poland
Summary
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Rockstar🎓
Top SchoolPiotr Stępniewski is a Senior Front-end Developer based in Warsaw with 12 years of experience building user-focused web applications. He combines formal computer science training with a background in business psychology, giving him a practical edge in designing interfaces that align with user behavior and product goals. Since 2022 he’s contributed front-end expertise at Betsson Group while running Idea Then Go, a software consulting venture he founded in 2016. His profile reflects a blend of hands-on engineering, client-facing consulting, and an interest in the human side of product design, which helps him bridge technical implementation and business outcomes.
12 years of coding experience
Licencjat (Lic.), Psychologia w biznesie, Licencjat (Lic.), Psychologia w biznesie at Uczelnia Techniczno-Handlowa im. Heleny Chodkowskiej w WarszawieLiceum ŁochówWarsaw University of Technology
Polish, English
Github Skills (200)
dynamic-forms10
python10
infinite-scroll10
json-schema10
angular-testing10
web-performance10
infrastructure10
extensible10
lazyload10
mime-types10
conventional-commits10
nx-workspace10
simplify10
javascript10
ng10
Programming languages (8)
Github contributions (5)
k3nsei/ng-in-viewport
May 2016 - May 2021
Allows us to check if an element is within the browsers visual viewport
Contributions:27 releases, 34 reviews, 1337 commits in 5 years 1 month
intersection-observerbrowsersweb-performanceangular-12angular-13
k3nsei/css-selector-builder
Oct 2020 - May 2023
Developer friendly CSS selector builder API
Contributions:8 reviews, 144 PRs, 177 pushes in 2 years 7 months
css-selector-builderapicssjavascriptbuilder
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