Jan Konieczny
Frontend Developer at Xebia
Krotoszyn, Greater Poland Voivodeship
Summary
👤
Senior🎓
Top SchoolJan Konieczny is a frontend developer with nine years of professional experience and 4+ years focused on building robust React and Next.js applications. He specializes in translating complex business logic into simple, maintainable user interfaces and has hands-on experience migrating monolithic apps to modern stacks while integrating auth (Okta) and AWS services like DynamoDB. Jan has contributed to high‑usage mobile/web products, led a JavaScript-to-TypeScript migration, and added testing coverage with Jest, React Testing Library and Behave. A self-taught iOS and IoT enthusiast, he pairs practical curiosity—evident in personal DIY and GitHub projects—with disciplined delivery in fintech and enterprise settings.
9 years of coding experience
5 years of employment as a software developer
Bachelor of Engineering - BE Computer Science, Bachelor of Engineering - BE Computer Science at Dolnośląska Szkoła WyższaBachelor of Engineering - BE Computer Science, Bachelor of Engineering - BE Computer Science at Wroclaw University of Science and Technology
English, Polish
Github Skills (11)
homekit10
esp82669
arduino7
bluetooth7
esp327
reverse-engineering6
airtag5
xtensa5
macos5
esp-idf5
rtos3
Programming languages (5)
Github contributions (5)
konifer44/Weather_App-SwfitUI
Aug 2020 - May 2021
Contributions:17 commits, 14 pushes, 1 branch in 8 months
konifer44/Landing_Game-SwiftUI
Aug 2020 - May 2021
Contributions:19 commits, 16 pushes, 1 branch in 9 months
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