Moritz Gellner
Principal Software Engineer at Microsoft
Seattle, Washington, United States
Summary
🤩
Rockstar🎓
Top SchoolMoritz Gellner is a Principal Software Engineer with 13 years of experience building secure, scalable full-stack systems, currently shaping Authentication Experiences within Microsoft's Identity organization. He brings deep cross-layer expertise—from networking and platform infrastructure to back-end services and front-end UX—developed through progressive engineering roles at Microsoft and earlier full-stack platform work at Epic. Known for improving developer efficiency and reliability, he has led architectural efforts, tooling enhancements, and internal knowledge-sharing initiatives that reduced friction for engineering teams. His background includes hands-on work with .NET, JavaScript, Chromium-based desktop apps, and C++, reflecting a comfort with both web and native platforms. Based in Seattle, he combines large-scale production experience with a penchant for pragmatic automation and developer-focused tooling. Colleagues can expect a blend of security-minded design and operational craftsmanship that scales across teams and services.
13 years of coding experience
9 years of employment as a software developer
Bachelor of Arts (B.A.) Computer Science, Bachelor of Arts (B.A.) Computer Science at Northwestern University
English, German, French
Stackoverflow
4,623reputation
979kreached
48answers
4questions
rounding
top-5%
vector
top-5%
floating-point
top-5%
heroku
top-5%
Github Skills (24)
microsoft-authentication10
swagger10
microsoft-azure10
rest10
azure10
rest-api10
msal10
openapi10
rounding9
heroku9
floating-point9
vector9
js8
tslint8
static-analysis8
Programming languages (2)
Github contributions (5)
cpottamus/btree_lab
Dec 2013 - Dec 2013
Contributions:60 commits in 1 day
moritzg91/hackerrank
Feb 2016 - Mar 2017
Contributions:15 pushes, 1 branch in 1 year
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