Michael Pysson
Principal Software Engineering Manager at Microsoft
Greater Seattle Area United States
Summary
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Rockstar🎓
Top SchoolMichael Pysson is a Principal Software Engineering Manager at Microsoft with 7 years in leadership roles and a 16+ year tenure building developer productivity and distributed build systems. He leads the BuildXL team, driving incremental and distributed build engineering for some of Microsoft's largest codebases and contributing hands-on to reliability, telemetry, and CLI improvements in the open BuildXL project. His background spans deep SDE work across CloudBuild, test automation, code search, and pre-checkin validation systems that increased engineering velocity across Bing and other orgs. Known for blending managerial oversight with low-level debugging, he has fixed thorny issues like directory deletion locks and shared opaque crashes that directly improved build stability. Based in the Greater Seattle area, he combines systems-level thinking with practical automation to accelerate large-scale development workflows. Collected from long Windows-scale engineering experience, his work often surfaces as pragmatic, measurable improvements to developer experience and build performance.
7 years of coding experience
12 years of employment as a software developer
Bachelor of Science (BS) Computer Engineering, Bachelor of Science (BS) Computer Engineering at University of Illinois Urbana-Champaign
Github Skills (9)
error-handling10
logging10
csharp10
build-automation10
dotnet-core10
performance-optimization9
telemetry9
system-design8
cicd7
Programming languages (4)
Github contributions (5)
microsoft/BuildXL
Mar 2019 - Jan 2023
Microsoft Build Accelerator
Role in this project:
Back-end Developer & Automation Engineer
Back-end Developer & Automation EngineerContributions:278 commits, 155 PRs, 1443 pushes in 3 years 10 months
Contributions summary:Michael's contributions primarily focused on improving the BuildXL project's reliability and functionality. They made significant changes to the build process, addressing issues like preventing directory deletion locks, fixing crashes related to shared opaque checks, and handling errors related to process output. Additionally, the user improved telemetry data collection by sending the StringTable size and other statistics. Their work also included updates to the BuildXL CLI to incorporate new features.
kernelunixcompilermicrosoftexecutable
mpysson/BuildXL
Mar 2019 - Nov 2019
Microsoft Build Accelerator
Contributions:63 pushes, 74 branches in 8 months
cppcmakewindowstvmmicrosoft
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