Sébastien Lachance
Senior XAML Developer at Kahua
Vaudreuil-Dorion, Quebec, Canada
Summary
🤩
Rockstar🎓
Top SchoolSébastien Lachance is a Senior XAML Developer with over two decades focused on front-end Windows and cross-platform UI engineering, currently building Uno Platform-based host applications. He has deep expertise in C# and XAML across WPF, UWP, WinUI and Avalonia, and has led or been sole owner of multiple production front-ends—from DRM-enabled e-book readers to EV charger dashboards. A long-time Microsoft ecosystem contributor and former Microsoft MVP (2013–2022), his open-source work includes UI component enhancements to the widely used Windows Community Toolkit. Notable past achievements include two Windows Phone apps acquired by Microsoft and over 600,000 downloads across his consumer apps, reflecting both product and developer marketing impact. Based in Vaudreuil-Dorion, Quebec, he prefers remote roles and brings a track record of performance optimization, sync-engine refactors, and shipping cross-platform UIs that balance polish with maintainability.
10 years of coding experience
22 years of employment as a software developer
Bachelor in Computer Science Computer Science, Bachelor in Computer Science Computer Science at Université de Sherbrooke
French, English
Stackoverflow
70reputation
1kreached
4answers
2questions
Github Skills (12)
uwp10
csharp10
xaml10
dotnet-new9
dotnet9
mvvm8
visual-studio7
windows7
windows-phone6
windows-runtime6
encryption6
mvvmcross6
Programming languages (10)
Github contributions (5)
CommunityToolkit/WindowsCommunityToolkit
Aug 2021 - Aug 2021
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:8 reviews, 9 commits, 1 PR in 6 days
Contributions summary:Sébastien's commits primarily focus on the implementation and modification of UI components within the Windows Community Toolkit. Their contributions include creating a new `KeyDownTriggerBehavior` feature with associated XAML and C# code. These changes added a new sample page to demonstrate its usage. The user also fixed several code issues and incorporated feedback from code reviews.
mvvmwindows-sdkc-sharpcustom-controlswindows-10
ArchieCoder/MyGitHubApp
Jul 2020 - Dec 2020
Contributions:4 pushes in 4 months
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