Konrad Kotelczuk
Senior Frontend Developer at Sii Poland
Białystok, Podlaskie Voivodeship, Poland
Summary
👤
Senior🎓
Top SchoolKonrad Kotelczuk is a Senior Frontend Developer with a decade of experience delivering web and mobile applications, currently shaping React-based projects at Sii Poland. He has led frontend teams at BitBay and built products across startups and enterprise settings, combining hands-on React/React Native expertise with experience in legacy frameworks like Backbone.js. Konrad also brings a hardware-meets-software perspective—having contributed a C++ Arduino library for BaaS integration—which reflects his habit of exploring side projects to solve uncommon problems. A former lecturer at Bialystok University of Technology, he pairs practical engineering with the ability to explain complex concepts clearly. Based in Białystok, Poland, he favors learning new technologies and pragmatic solutions that balance product needs with maintainable code.
10 years of coding experience
9 years of employment as a software developer
Master of Science (M.Sc.) Informatics, Master of Science (M.Sc.) Informatics at Bialystok University of Technology
Polish, English, German
Github Skills (124)
cross-platform10
android10
ios10
react-native10
react10
jsdelivr9
traffic9
mobile9
app-framework8
visual-editor8
mobile-development8
explore8
cdn8
npm8
nodes8
Programming languages (4)
Github contributions (5)
kkotelczuk/kkotelczuk.github.io
Feb 2017 - Mar 2018
Contributions:59 pushes, 2 branches in 1 year
kkotelczuk/weekendTour
Jul 2017 - Feb 2018
Contributions:10 PRs, 16 pushes, 10 branches in 7 months
reactjsreactsimple-app
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