Matthias Leibmann
Principal Program Manager, Exchange App Ecosystem at Microsoft
Redmond, Washington, United States
Summary
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Senior🎓
Top SchoolMatthias Leibmann is a Principal Program Manager at Microsoft with a software career beginning in 1991 and more than three decades of hands‑on engineering and program leadership. He has led identity, authentication, federation, and Exchange app ecosystem efforts, translating complex security and calendaring scenarios into end‑to‑end product designs. At Microsoft since 1995, he has a track record of resolving cross‑team technical challenges under tight constraints while aligning customer requirements with clear execution plans. Matthias combines deep protocol-level expertise (OAuth, entitlement and access management) with practical systems integration and provisioning experience across heterogeneous, distributed environments. He is based in Redmond and brings both architect-level thinking and ground-level delivery discipline to large-scale collaboration and identity projects. A detail that often goes unnoticed: he frequently turns intricate use cases into simple, consumable artifacts that steer product decisions and implementation across org boundaries.
11 years of coding experience
20 years of employment as a software developer
Diploma Computer Science, Computer Science, Information Technology, Diploma Computer Science, Computer Science, Information Technology at Technical University of Applied Sciences Würzburg-Schweinfurt (THWS)
German, English
Stackoverflow
258reputation
24kreached
11answers
0questions
Github Skills (10)
exchange-web-services6
msoffice6
sharepoint6
outlook-rest-api6
rest6
microsoft-graph-api6
office3656
api4
android-app4
android3
Programming languages (2)
Github contributions (5)
mattleib/o365api-android-get-events-app
Jan 2015 - Feb 2015
Contributions:31 commits, 1 PR, 31 pushes in 25 days
apieventscalendareveroffice-365
mattleib/o365api-simple-code-flow
Feb 2015 - Apr 2015
Contributions:3 commits, 2 pushes in 1 month
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