Matt Lacey
Software Engineer
North Kesteven, England, United Kingdom
Summary
🤩
Rockstar🎓
Top SchoolMatt Lacey is a seasoned software engineer with 15 years of experience building full-stack .NET and cross-platform C#/XAML applications, including significant contributions to high-profile open source projects like the Windows Community Toolkit and the Uno Platform. He has delivered production features spanning UI components, XAML hot-reload, source generators, and build configuration improvements while working with Microsoft and as a consultant through his own company. Comfortable across front-end and back-end concerns, Matt combines pragmatic engineering with a history of integrating and maintaining complex codebases and enabling better developer experiences. A Microsoft MVP and published author, he brings community-minded craftsmanship and a knack for making developer tooling and animations feel effortless. Based in North Kesteven, England, he blends enterprise experience with open-source impact—often working on subtle UX and tooling refinements that unlock productivity for other developers.
15 years of coding experience
25 years of employment as a software developer
FullbrookBA (Hons) Information Systems Business Administration, BA (Hons) Information Systems Business Administration at University of Northampton
Stackoverflow
65,748reputation
7.2mreached
2,175answers
38questions
browser
top-5%
silverlight
top-1%
image
top-5%
emulation
top-5%
newline
top-1%
automated-tests
top-5%
Github Skills (47)
silverlight10
xaml10
windows10
uwp10
dotnet-new10
dotnet10
winui10
windows-phone10
cross-platform10
rust-wasm10
batchfile10
wasm-pack10
remote-control10
windows-app-sdk10
vbnet10
Programming languages (12)
Github contributions (5)
microsoft/TemplateStudio
Mar 2017 - Jun 2022
Template Studio accelerates the creation of new WinUI 3, WPF, and UWP apps using a wizard-based experience.
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:106 reviews, 1645 commits, 264 PRs in 5 years 3 months
Contributions summary:Matt's commits primarily focus on enhancements to the WinUI Template Studio project, including adding support for WinAppDriver project templates with both C# and VB.NET. They also improved existing test projects, by adding a test for ensuring each of the pages are accessible, and fixing issues with the templates. Furthermore, the commits include code style fixes and the integration of new features, such as support for multiple instances.
template-enginexamltemplateuwpuwp-apps
CommunityToolkit/WindowsCommunityToolkit
Jan 2017 - Nov 2020
The Windows Community Toolkit is a collection of helpers, extensions, and custom controls. It simplifies and demonstrates common developer tasks building .NET apps with UWP and the Windows App SDK / WinUI 3 for Windows 10 and Windows 11. The toolkit is part of the .NET Foundation.
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:3 reviews, 53 commits, 13 PRs in 3 years 10 months
Contributions summary:Matt contributed to the Windows Community Toolkit by implementing and modifying UI components, specifically within the XAML framework. They addressed issues related to path validation and integrated new animation features using C#, focusing on easing types and animation extensions. Additionally, the user integrated and merged various updates and enhancements from other branches, demonstrating a role in maintaining and integrating code within the project.
mvvmwindows-sdkc-sharpcustom-controlswindows-10
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