Matthew Leibowitz
Principal Software Engineer at Open Source Project Contributions
Western Cape, South Africa
Summary
🤩
Rockstar🎓
Top School
Top expert inXamarin and .NET MAUI Development
Matthew Leibowitz is a Principal Software Engineer with 14 years of hands-on experience building and hardening .NET and cross-platform mobile tooling, currently driving engineering at Microsoft from the Western Cape. He combines deep C#/.NET expertise with full-stack and mobile experience (Xamarin/.NET MAUI) and a strong DevOps/CI automation focus, having improved build pipelines for high-profile projects like Mono, Xamarin.Essentials, FFImageLoading and RestSharp. A cum laude BSc in Computer Science and a Xamarin Certified Mobile Developer credential underscore his formal and practical skills, while his open-source contributions range from runtime bug fixes in Mono to UI and build-system improvements across major .NET libraries. Known for prioritizing clean, maintainable code and robust release automation, he brings a pragmatic engineering mindset that reduces friction from development through deployment.
14 years of coding experience
5 years of employment as a software developer
Matric, Matric at HomeschoolUniversity of South Africa
English, Afrikaans
Stackoverflow
5,012reputation
313kreached
122answers
40questions
xamarin
top-5%
Github Skills (56)
nuget10
cakephp10
ios10
scripting10
xaml10
msbuild10
windows10
uwp10
net10
maui10
xamarin10
dotnet-new10
dotnet10
cross-platform10
ui-design10
Programming languages (21)
Github contributions (5)
dotnet/maui
Mar 2021 - Jan 2023
.NET MAUI is the .NET Multi-platform App UI, a framework for building native device applications spanning mobile, tablet, and desktop.
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:1 release, 3896 reviews, 1236 commits in 1 year 11 months
Contributions summary:Matthew primarily focused on the development of .NET MAUI applications as indicated by their code contributions to the dotnet/maui repository. Their commits involved merging branches, which suggests they were integrating changes into the project. The code changes span across UI elements, suggesting they are likely responsible for both front-end and back-end work related to .NET MAUI applications. This includes adding UI functionality and integrating various packages, such as those related to UI components and API features.
dotnetmauimobilemulti-platformuser-interface
xamarin/XamarinComponents
Jun 2016 - May 2021
Plugins for Xamarin
Role in this project:Mobile Developer (iOS)
Mobile Developer (iOS)Contributions:93 releases, 58 reviews, 616 commits in 4 years 11 months
Contributions summary:Matthew added the SDSegmentedControl component to the Xamarin components repository. The changes included adding a sample project, modifying existing projects to integrate the component, and incorporating a built library. The work involved the modification of several files, including project files, API definitions, and code-level changes.
xamarin
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