Michał Januszewski
Senior IOS Engineer at HeyPolo
Warsaw, Masovian Voivodeship, Poland
Summary
👤
Senior🎓
Top SchoolMichał Januszewski is a Senior iOS Engineer with over a decade of hands-on experience building production apps across iPhone, iPad and tvOS, currently shipping mobile features at HeyPolo while running independent projects through his freelance studio GearAppa. He brings deep expertise in Swift and Objective-C, modern architectures like Composable Architecture and Combine, and a practical interest in Rust, functional programming and compiler design that informs robust, maintainable code. His background spans product-focused streaming and video playback systems, chat and persistence layers, and leadership work defining mobile architecture, CI/testing practices and team processes. Comfortable with low-level challenges and reverse engineering, he pairs curiosity-driven technical exploration with a track record of delivering user-facing apps at scale. Based in Warsaw, he’s also a pet owner whose off-hours curiosity in compilers and FP often surfaces in elegant engineering solutions.
10 years of coding experience
12 years of employment as a software developer
Bialystok University of Technology
English, Polish
Github Skills (14)
programming-language10
swift10
instagram8
sdk8
ios6
snappy5
cocoapods5
gzip5
brotli5
compression-algorithm4
compression4
lz43
lzma3
zstd3
Programming languages (3)
Github contributions (5)
blackrain/DAW
Aug 2016 - Aug 2016
Contributions:18 pushes, 2 branches in 3 days
stormideas/storyteller-sdk-cartfile
Apr 2020 - May 2020
Contributions:2 PRs, 8 pushes, 3 branches in 15 days
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