Mateusz Łopaciński
Software Engineer at Software Mansion
Krakow, Lesser Poland Voivodeship
Summary
🤩
Rockstar🎓
Top SchoolMateusz Łopaciński is a Software Engineer at Software Mansion with over three years of hands-on experience building web and cross-platform mobile applications, now totaling six years in software. He transitioned from React web development to React Native, contributing to the Uniswap wallet mobile app and Chrome extension and specializing in polished mobile UIs. As a member of the React Native Reanimated open-source team, he authored the CSS-style animations and transitions feature in v4 and added practical example screens and docs to help others adopt it. Based in Krakow, he combines academic grounding—pursuing a Master's in Computer Science at AGH—with a pragmatic, hackathon-driven approach to exploring new ideas and technologies. He’s comfortable shipping production mobile features on iOS and Android and actively shares work that bridges developer ergonomics and UI expressiveness. Always open to collaborations, he brings both product-focused delivery and open-source stewardship to engineering teams.
6 years of coding experience
AGH UniversityMaster's degree, Computer Science, Master's degree, Computer Science at AGH University of Krakow
Github Skills (5)
react-native10
mobile-ui10
css-animations10
animation10
ui-design9
Programming languages (10)
Github contributions (5)
software-mansion/react-native-reanimated
Mar 2023 - Apr 2025
React Native's Animated library reimplemented
Role in this project:
Mobile Developer (iOS/Android)
Mobile Developer (iOS/Android)Contributions:4 releases, 220 reviews, 150 PRs in 2 years 1 month
Contributions summary:Mateusz primarily contributed to the React Native Reanimated library by implementing and documenting new CSS animation features within the example app. Their work included adding examples for new CSS-based animation properties like `boxSizing`, and more, alongside example implementations and documentation. The user demonstrated expertise in mobile UI development by constructing several example screens.
reactanimationanimatedreact-nativejavascript
MatiPl01/react-native-sortables
Jan 2025 - Apr 2025
🚀 Powerful Sortable Components for Flexible Content Reordering in React Native
Contributions:10 releases, 7 reviews, 143 PRs in 2 months
draggabledraggable-flexdraggable-gridflexgrid
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.