Krzysztof Wicher
Software Development Engineer at Microsoft
Greater Poland Voivodeship
Summary
🤩
Rockstar🎓
Top SchoolKrzysztof Wicher is a software development engineer with 11 years of experience at Microsoft, specializing in .NET runtime, globalization, cryptography and IoT. He contributes to high-profile open source .NET projects (dotnet/runtime, mono, CoreRT, dotnet/iot), improving core libraries, fixing subtle date/time and serialization bugs, and adding AesGcm/AesCcm support. His background in control engineering and robotics underpins practical embedded work—he implemented cross-language serial communication demos for Arduino and simplified IoT samples. Colleagues rely on him for modernization tasks like nullable annotations and Utf8String improvements that boost maintainability and performance. Notably, he pairs low-level runtime fixes with hands-on hardware demos, bridging cloud/desktop runtimes and embedded systems.
11 years of coding experience
BSc, Control Engineering and Robotics, BSc, Control Engineering and Robotics at Poznan University of Technology
Github Skills (25)
unit-testing10
utf10
text-manipulation10
net10
dotnet10
globalization10
security10
asp-net10
iot10
sys10
openssl10
dotnet-core10
netcore10
embedded10
timezone10
Programming languages (13)
Github contributions (5)
dotnet/iot
Nov 2018 - Jan 2023
This repo includes .NET Core implementations for various IoT boards, chips, displays and PCBs.
Role in this project:
Embedded Systems Engineer / IoT Developer
Embedded Systems Engineer / IoT DeveloperContributions:2 releases, 1705 reviews, 99 commits in 4 years 3 months
Contributions summary:Krzysztof primarily contributed to the development of .NET Core implementations for various IoT boards, chips, and displays. Their work includes adding and improving a demo for Arduino boards, including the implementation of a communication protocol between a .NET application and an Arduino device to control a spinning LED light and change the color. Their commits also involve fixing builds, updating project files, and simplifying existing samples related to serial communication.
dotnetiot
dotnet/runtime
Nov 2014 - Nov 2022
.NET is a cross-platform runtime for cloud, mobile, desktop, and IoT apps.
Role in this project:Back-end Developer
Back-end DeveloperContributions:1658 reviews, 555 commits, 241 PRs in 8 years 1 month
Contributions summary:Krzysztof contributed to the .NET runtime repository by fixing bugs and improving code efficiency within the System.IO.Ports and System.Security.Cryptography.Pkcs namespaces. Their work included addressing serialization issues, enhancing the handling of character streams on Unix systems, and implementing improvements in the performance and robustness of serialization and deserialization methods. The user also provided support for OpenSSL providers.
dotnetiotmobile
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