Marco Peyrot
Software Engineer at Microsoft
Mexico City
Summary
🤩
Rockstar🎓
Top SchoolMarco Peyrot is a Software Engineer with 11 years of experience, currently building developer tools at Microsoft from Mexico City. He brings deep systems and performance expertise—evidenced by contributions to PerfView where he implemented a memory-efficient SegmentedList to reduce allocation overhead in memory graphs. Marco also has hands-on experience with Visual Studio extensibility, adding debugger visualizer functionality and improving build/dependency workflows in Microsoft sample projects. A Carnegie Mellon and Tecnológico de Monterrey alumnus with top grades, he combines strong academic foundations with production-grade engineering. Colleagues can expect a pragmatic problem-solver who focuses on low-level optimizations and developer productivity. A less obvious strength: he balances refactoring and compatibility, ensuring improvements (like serialization and build fixes) don’t regress widely-used tooling.
11 years of coding experience
Bachelor's degree, Computer Software Engineering, 4, Bachelor's degree, Computer Software Engineering, 4 at Tecnológico de MonterreyBachelor's degree, Computer Science, 4.0/4.0, Bachelor's degree, Computer Science, 4.0/4.0 at Carnegie Mellon University
English, Spanish, German
Stackoverflow
1reputation
0reached
0answers
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Github Skills (15)
extensibility10
net10
asp-net10
memory-management10
dotnet10
performance-analysis10
visual-studio-extension10
csharp10
performance-optimization10
dotnet-core10
netframework10
dotnet-new9
wpf9
performance-monitor9
msbuild7
Programming languages (4)
Github contributions (5)
microsoft/perfview
Jan 2019 - Sep 2021
PerfView is a CPU and memory performance-analysis tool
Role in this project:
Back-end Developer & Performance Engineer
Back-end Developer & Performance EngineerContributions:5 reviews, 27 commits, 8 PRs in 2 years 9 months
Contributions summary:Marco primarily contributed to the performance analysis tool by implementing a `SegmentedList` data structure to reduce memory usage, specifically within the `MemoryGraph` class. Their work involved refactoring code to swap out `GrowableArray` in favor of `SegmentedList`, improving memory management in relation to object addresses. They also addressed build issues, updated dependencies, and ensured serialization compatibility, likely to maintain and improve the tool's functionality and efficiency.
cpumemorydotnetperformance-analysiswindows
microsoft/VSSDK-Extensibility-Samples
Jul 2022 - Aug 2022
Samples for building your own Visual Studio extensions
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:8 commits, 1 PR, 2 comments in 3 days
Contributions summary:Marco contributed to the development of a Visual Studio extension sample, focusing on implementing a debugger visualizer. The commits reveal the addition and modification of C# projects and files related to visualizer functionality, including debugger-side and debuggee-side components. They used .NET Framework 4.7.2 and Microsoft.VisualStudio.DebuggerVisualizers library, and also refactored project structures. Several changes were also focused on build processes and dependencies of WPF.
extensionsvisualstudiovisual-studio-extensionvisual-studio
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