Ilona Tomkowicz
Software Engineer II at Microsoft
Prague, Prague, Czechia
Summary
🤩
Rockstar🎓
Top SchoolIlona Tomkowicz is a Software Engineer II based in Prague with eight years of experience building .NET-based web and runtime systems. At Microsoft she has focused on Blazor WebAssembly, contributing to the .NET SDK, runtime, and ASP.NET Core to improve globalization, custom ICU data loading, debugging and navigation behaviors. Her work blends backend and full-stack responsibilities—implementing build/publish automation, refining runtime debugger evaluation for WASM, and enhancing component routing and globalization support. She brings a pragmatic engineering approach, routinely refactoring shared logic and updating tests to ship robust features in large, open-source projects. A dual-degree graduate from AGH University of Science and Technology, she pairs strong academic foundations with hands-on open-source impact on widely used .NET repos. Notably, her contributions help ensure correct asset handling and developer debugging experience in cross-platform WebAssembly scenarios.
8 years of coding experience
5 years of employment as a software developer
AGH University
English, German, Polish
Github Skills (28)
arcgisruntime10
debugging10
url-routing10
javascript10
runtimes10
net-sdk10
msbuild10
net10
dotnet-new10
dotnet10
run-time10
asp-net-core10
blazor10
sdk10
dotnet-sdk10
Programming languages (13)
Github contributions (5)
dotnet/runtime
Nov 2021 - Dec 2022
.NET is a cross-platform runtime for cloud, mobile, desktop, and IoT apps.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:913 reviews, 60 commits, 624 PRs in 1 year 2 months
Contributions summary:Ilona's commits primarily focus on debugging, fixing, and extending the functionality of the .NET runtime, specifically within the context of WebAssembly (WASM) and its debugger. Contributions include implementing features for element access, adding support for debugger attributes and properties, resolving static members, and addressing exceptions in the evaluation process. The user's work improves debugging capabilities and ensures the correct evaluation of expressions within the WASM environment.
dotnetiotmobile
dotnet/aspnetcore
Mar 2022 - Jul 2026
ASP.NET Core is a cross-platform .NET framework for building modern cloud-based web applications on Windows, Mac, or Linux.
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:190 reviews, 145 PRs, 143 pushes in 4 years 5 months
Contributions summary:Ilona made several contributions related to Blazor component development and web application features. Their work included implementing custom ICU loading and correcting EFIGS keys for globalization support within the .NET Core framework. They also focused on enhancing routing functionality, specifically addressing scroll behavior during navigation and implementing a feature to override NavLink behavior.
cloud-computingdotnetlinuxwindowsaspnetcore
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