Thomas Rayner
Senior Software Security Engineer at Microsoft
Redmond, Washington, United States
Summary
👤
Senior🎓
Top SchoolThomas Rayner is a Senior Software Security Engineer with two decades of hands-on experience building secure, cloud-scale systems and mentoring engineering teams across Microsoft. He specializes in identity (authn/authz), x509 certificate and secret management, secure software supply chains, and cloud architecture, and has driven organization-wide security initiatives impacting millions of users. At Microsoft he designs host and cloud-based enforcement agents, data platforms for security policy, and central remediation efforts for 100+ teams supporting Teams backend services. A prolific speaker, best-selling author, and educator, he blends practitioner-level coding in C#, TypeScript, Go and KQL with strategic security leadership across 2,000+ person organizations. Based in Redmond, he quietly pairs technical depth with practical developer enablement—building dashboards from massive disparate datasets to help leaders make data-driven security decisions. Outside work he’s a hiker who enjoys wine and cats, reflecting a pragmatic, curious personality beyond the console.
10 years of coding experience
16 years of employment as a software developer
Bachelor of Technology Technology Management, Bachelor of Technology Technology Management at NAIT (Northern Alberta Institute of Technology)
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (98)
windows10
microsoft-azure10
visual-studio10
linter10
arm10
netcore10
tester10
pester10
feed10
linux10
formatter10
editor10
powershell-module10
planet10
powershell10
Programming languages (12)
Github contributions (5)
thomasrayner/CATEncryptor
May 2020 - Jul 2021
Contributions:38 commits, 6 PRs, 44 pushes in 1 year 2 months
thomasrayner/Presentation-Files
Sep 2016 - Apr 2021
Contributions:41 commits, 2 PRs, 45 pushes in 4 years 8 months
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