Simon Xiao
Principal Software Engineer Manager at Microsoft
Mercer Island, Washington, United States
Summary
👤
Senior🎓
Top SchoolSimon Xiao is a Principal Software Engineering Manager with 11+ years at Microsoft, leading teams that deliver Azure Confidential Computing VM offerings and ensure Linux guest quality across thousands of marketplace images. He combines deep systems and test engineering expertise—authoring Linux kernel patches, building performance benchmarks and CI-driven quality dashboards—with hands-on leadership of 17-engineer teams. Simon pioneered tooling such as LISA, Penguinator, ntttcp-for-Linux and lagscope to catch issues before customers see them, and has driven quality-first OKRs across Azure Linux infrastructure. His background spans protocol interoperability testing, vendor management, and incident response (notably during Meltdown/Spectre), giving him a rare mix of product-focused reliability and low-level debugging skill. Based in Mercer Island, WA, he hires and mentors for Azure Confidential Compute and continuously bridges open-source Linux work with large-scale cloud service delivery.
11 years of coding experience
14 years of employment as a software developer
Bachelor’s Degree, Bachelor’s Degree at Tongji University
English
Github Skills (64)
e2e-testing10
benchmark10
testing10
bandwidth10
linux10
validation10
linux-distro10
throughput10
cloudtesting10
thread10
azure10
automation-framework10
transport9
microsoft9
hyper-v9
Programming languages (4)
Github contributions (5)
simonxiaoss/linux_performance_test
Apr 2016 - Oct 2017
Contributions:58 commits, 5 PRs, 49 pushes in 1 year 6 months
microsoft/ntttcp-for-linux
Oct 2015 - Aug 2021
A Linux network throughput multiple-thread benchmark tool.
Contributions:2 releases, 22 reviews, 128 commits in 5 years 11 months
benchmarkthreadlinuxthroughput
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