Michał Kołodziejski
Senior Software Developer at Demant
Gdansk, Pomeranian Voivodeship, Poland
Summary
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Senior🎓
Top SchoolMichał Kołodziejski is a Senior Software Developer based in Gdańsk with 11 years of experience building cross-platform mobile and backend solutions using C#, .NET/.NET Core, Xamarin, MvvmCross and Entity Framework. He has progressed from junior roles at Samsung to senior engineering at Demant, delivering production Android and iOS apps and resilient data-driven services. Comfortable with test-driven practices (nUnit, xUnit, nSubstitute) and SQL-backed architectures, he bridges mobile UI concerns with robust server-side design. His background in Polish technical universities and steady internal promotions suggest a pragmatic engineer who excels in long-term product ownership and incremental modernization. Notably, his career emphasizes enterprise-grade mobile development—an area where deep platform and .NET ecosystem expertise is relatively rare.
11 years of coding experience
6 years of employment as a software developer
Inżynier (Inż.), Informatyka, 2, Inżynier (Inż.), Informatyka, 2 at Wyższa Szkoła Informatyki, Zarządzania i Administracji w WarszawieWarsaw University of Technology
Github Skills (40)
tizen10
dotnet10
android10
tablet10
maccatalyst9
microsoft9
ios9
user-interface9
net-maui9
desktop9
xamarin9
winui9
uwp9
maui9
csharp9
Programming languages (3)
Github contributions (5)
miko1258/GitLearning
May 2017 - May 2017
Contributions:3 pushes, 1 branch in 1 day
WinaLifeGames/serverside
Apr 2015 - Apr 2015
Contributions:6 pushes in 6 days
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