Michał Chudziak
Director Of Engineering at Callstack
London, England, United Kingdom
Summary
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Rockstar🎓
Top SchoolMichał Chudziak is a Director of Engineering in London with nine years of experience leading and scaling React and React Native teams, currently heading engineering at Callstack. He combines hands-on mobile development—contributing to core React Native and maintaining the widely used react-native-geolocation library—with strategic delivery leadership, having scaled teams of up to 60 engineers and managed high-traffic mobile platforms. A member of the React Native New Architecture Working Group, he’s known for extracting core modules into OSS libraries and improving lifecycle, accessibility, and animation behaviors in the framework. His background as an independent consultant and platform engineer underscores strengths in migration planning, performance optimization, and building native SDK wrappers for React Native. Colleagues rely on him for pragmatic architecture decisions that balance developer experience, testing rigor, and commercial delivery.
9 years of coding experience
7 years of employment as a software developer
Informatyka, Informatyka at Wrocław University of Science and TechnologyInformatyka stosowana, Informatyka stosowana at Warsaw University of Technology
Polish, English, German
Stackoverflow
89reputation
8kreached
0answers
3questions
Github Skills (17)
objective-c10
javascript10
ios10
react-native10
mobile-development10
ui-components10
android10
geolocation10
swift10
slider-component10
react10
accessibility9
app-framework9
ms-access6
linked-list6
Programming languages (7)
Github contributions (5)
michalchudziak/react-native-geolocation
Apr 2019 - Jan 2023
Geolocation APIs for React Native
Role in this project:
Mobile Developer (Android/iOS)
Mobile Developer (Android/iOS)Contributions:13 releases, 47 reviews, 83 commits in 3 years 10 months
Contributions summary:Michał primarily contributed to the `react-native-geolocation` repository by integrating and maintaining location APIs. Their work involved modifying Android and iOS-specific code, which included refactoring existing code, fixing bugs, and upgrading dependencies to ensure that the geolocation functionality worked. They also addressed issues related to location permission handling and updated the example files.
react-nativegeolocationlocationreact
callstack/react-native-slider
Feb 2019 - Nov 2020
React Native component exposing Slider from iOS and SeekBar from Android
Role in this project:Mobile Developer (iOS)
Mobile Developer (iOS)Contributions:9 releases, 21 reviews, 101 commits in 1 year 9 months
Contributions summary:Michał primarily contributed to the iOS side of a React Native component for a slider, focusing on implementing and fixing various aspects of the slider component. Their work included fixing the example app, updating iOS project configurations, fixing the touch-to-seek flicker, and handling events. The user appears to have been involved in refactoring the slider code and integrating with the React Native project's structure.
reactreact-nativesliderreact-native-componentandroid
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