Paweł Kowalczuk
Senior Mobile Software Engineer at Allegro
Warsaw, Masovian Voivodeship, Poland
Summary
👤
Senior🎓
Top SchoolPaweł Kowalczuk is a Senior Mobile Software Engineer based in Warsaw with over a decade of experience building production iOS apps and backend tooling for high-traffic services. He combines deep expertise in Swift, Objective-C and Apple frameworks with practical skills in backend languages and data engineering (Python, Elixir, Kafka, Kinesis), having built real-time pipelines and scalable chat systems. At Allegro he leads mobile development efforts, and his prior roles include building a popular Polish banking app and architecting multi-component solutions at Applause that processed thousands of daily messages. An entrepreneurial technologist, he ran his own studio for several years and emphasizes pragmatic, continuously learning engineering—reflected in his GitHub bio. He is comfortable spanning UI, infrastructure and data science concerns, often translating research ideas into production-ready features. Quietly, he pairs product-focused UX improvements with robust backend integrations, making him effective at end-to-end mobile delivery.
10 years of coding experience
9 years of employment as a software developer
Master's degree, Information Technology, Master's degree, Information Technology at Politechnika Białostocka
English
Github Skills (10)
redux4
ios3
scrolling2
ordered2
uitableviewcell1
swift1
dictionary1
ordered-dictionary1
uicollectionview1
dynamic-type1
Programming languages (3)
Github contributions (5)
riamf/ReduxTest
Jan 2020 - Apr 2020
Test implementation of Redux pattern for iOS app
Contributions:38 commits, 4 PRs, 42 pushes in 3 months
iosredux
riamf/riamf.github.io
Jan 2017 - Jan 2019
Contributions:26 pushes, 2 branches in 1 year 11 months
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