Marcus Perryman
Principal Software Engineer Manager at Microsoft
Wimborne Minster, England, United Kingdom
Summary
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Rockstar🎓
Top SchoolMarcus Perryman is a Principal Software Engineer Manager at Microsoft with a long-standing career shaping Windows developer experiences and leading senior engineering teams. Over nearly three decades at Microsoft he has progressed from hands-on software design to principal-level engineering and management roles, currently influencing the future of Windows technologies for partner and developer ecosystems. He brings deep UI/UX expertise—demonstrated by front-end contributions to the widely used Windows Community Toolkit, where he fixed layout, tokenization and stability issues in controls like TokenizingTextBox. Based in Wimborne Minster, England, Marcus combines technical craftsmanship with partner-focused delivery, helping strategic customers deploy apps on Windows 10 and beyond. Known for pragmatic problem-solving and shipping reliable developer tooling, he pairs a Computer Science degree from the University of Wolverhampton with a track record of mentoring experienced engineers and resolving subtle product-quality issues.
8 years of coding experience
27 years of employment as a software developer
Bachelor’s Degree, Computer Science, 2.1, Bachelor’s Degree, Computer Science, 2.1 at University of WolverhamptonWinton Boys
Stackoverflow
1reputation
264reached
2answers
1question
Github Skills (17)
xaml10
uwp10
winui10
windows-sdk10
dotnet-core10
csharp10
dotnet9
mvvm9
dotnet-new9
arm6
visual-studio6
windows6
xamarin6
windows-phone6
debugging6
Programming languages (6)
Github contributions (5)
CommunityToolkit/WindowsCommunityToolkit
May 2020 - Jun 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:
Front-end Developer
Front-end DeveloperContributions:14 commits, 13 PRs, 39 pushes in 14 days
Contributions summary:Marcus primarily contributed to the UI/UX aspects of the Windows Community Toolkit. They implemented new properties for the `TokenizingTextBox` control to work around layout issues. The user also added a feature to access pretoken string items, added a clear function to clean the tokens and refined the sample application. The changes also included addressing code review comments and fixing a crash issue with the TTB.
mvvmwindows-sdkc-sharpcustom-controlswindows-10
marcpems/CoreAssign
Nov 2020 - Mar 2025
Contributions:5 pushes, 1 branch in 4 years 4 months
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