Richard Murillo
Principal Software Engineering Manager, Microsoft Defender For Endpoint
Redmond, Washington, United States
Summary
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RockstarRichard Murillo is a Principal Software Engineering Manager at Microsoft with 11+ years of experience leading large-scale platform modernization and security engineering efforts that protect billions of devices. He co-founded and scaled a security team for Microsoft Defender for Endpoint, secured $40M in funding, and delivered ARM-based compute pilots that cut costs 40% while modernizing legacy threat protection across 1.5B+ monthly devices. A cross-functional leader, he pairs executive-level strategic planning with hands-on engineering, having shaped browser and web platform services for Edge and contributed open-source WebView controls to the Windows Community Toolkit. His work blends product-focused customer obsession, measurable reliability (99.9% uptime in compliance tooling), and inclusive hiring practices that improved representation and reduced attrition. Notably, he has repeatedly translated high-stakes executive requirements into auditable, secure systems—ranging from Bill Gates’ communications platform to enterprise compliance tools integrated into Azure DevOps. Based in Redmond, he combines deep Microsoft institutional knowledge with a pragmatic drive to adopt next-gen silicon and cloud-native architectures.
11 years of coding experience
16 years of employment as a software developer
Stackoverflow
95reputation
1kreached
5answers
0questions
Github Skills (19)
webview10
ui-components10
net10
dotnet10
windows-forms10
asp-net10
dotnet-core10
android-webview10
wpf10
csharp10
api-design9
apim9
api9
windows-version6
operating-system6
Programming languages (5)
Github contributions (5)
CommunityToolkit/WindowsCommunityToolkit
Apr 2018 - Oct 2018
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:377 commits, 64 PRs, 56 pushes in 6 months
Contributions summary:Richard contributed to the implementation of WebView controls for Windows Forms and WPF, demonstrating a focus on front-end development and user interface components. They added features like setting the EnterpriseId and providing a method for navigation with HTTP request and headers and updated the source to reflect document location. The commits also involved fixing issues and adding documentation for better functionality. The user's work involved working on issues that may have required a deep understanding of user interface elements within the frameworks.
mvvmwindows-sdkc-sharpcustom-controlswindows-10
rjmurillo/UWPCommunityToolkit
Apr 2018 - Nov 2018
The UWP Community Toolkit is a collection of helper functions, custom controls, and app services. It simplifies and demonstrates common developer tasks building UWP apps for Windows 10. The toolkit is part of the .NET Foundation.
Contributions:15 PRs, 328 pushes, 122 branches in 7 months
app-servicescustom-controlswindows-10wpfwindows-phone
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