Afshin Sepehri
Co-Founder And CTO at Ex.Brain
Bellevue, Washington, United States
Summary
👤
Senior🎓
Top SchoolAfshin Sepehri is a security-focused software leader and Co-Founder/CTO with 12+ years building large-scale authentication, authorization, and governance platforms for enterprises. He combines a Ph.D. in Electrical and Computer Engineering with hands-on engineering pedigree from Microsoft and Salesforce, where he helped design core Azure and enterprise IAM services including ADAL and RBAC systems. At Exbrain.ai he leads platform and architecture at the intersection of AI and access management, prioritizing secure-by-design AI, trust boundaries, and operational excellence. His work spans low-level auth libraries to cloud-scale policy engines and developer tooling, with a track record of removing fragile dependencies and improving reliability at scale. An active contributor to Azure AD authentication tooling, he brings a rare mix of formal AI training, deep identity expertise, and startup-building experience. Based in Bellevue, WA, he favors pragmatic architectures that balance rapid iteration with long-term governance and enterprise readiness.
12 years of coding experience
19 years of employment as a software developer
Ph.D. Electrical and Computer Engineering, Ph.D. Electrical and Computer Engineering at University of MarylandMaster's degree Computer Engineeering, Master's degree Computer Engineeering at University of Tehran
Github Skills (9)
net10
asp-net10
user-authentication10
authentication10
dotnet10
csharp10
dotnet-core10
jwt9
cryptography8
Programming languages (5)
Github contributions (5)
AzureAD/azure-activedirectory-library-for-dotnet
Apr 2014 - May 2015
ADAL authentication libraries for .net
Role in this project:
Back-end Developer
Back-end DeveloperContributions:6 releases, 282 commits, 34 PRs in 1 year
Contributions summary:Afshin primarily contributed to the ADAL (Active Directory Authentication Library) for .NET. They worked on various aspects of the library, including bug fixes for URL encoding in JWT creation, implementing cache usage in token acquisition, and updating exception and error models. They also focused on adding features such as including the ID token in the authentication result and introducing prompt parameters.
dotnetauthenticationadalazure-ad-b2cmsal
vibronet/azure-activedirectory-library-for-dotnet
Jun 2014 - Jun 2014
Contributions:2 commits in 7 days
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