People/ucarion
Ulysse Carion

Ulysse Carion

former founderYC
Specializes inDeveloper Tools

SSOReady Cofounder / CTO

Cofounder/CTO at Tesseral. Formerly of Segment and Gem. I built Segment's permissions and identity resolution system. Editor of IETF RFC 8927. 🇫🇷🇺🇸

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Products · 1
Tesseral
Former Founder

Tesseral simplifies B2B user management with flexible authentication and role control.

Worked alongside
Ned O'Leary
Roles are derived from products, launches and repositories we track — not from self-description.