Ushindi G.

Broken login, failed SSO, unsafe tokens, or permissions that leak across tenants? I fix identity problems that block SaaS launches and enterprise deals. I'm Gedeon, a full-stack and identity engineer specializing in Auth0, Single Sign-On, OAuth 2.0, OpenID Connect, SAML, RBAC, and secure multi-tenant SaaS architecture. Since 2020, I've shipped production software for remote teams in the US, Canada, and Kenya. My experience includes designing enterprise authentication for a React/Node.js multi-tenant platform, federating Google, Microsoft Entra ID, Okta, and SAML identity providers, and building secure token and authorization workflows. What I can deliver: • Auth0 setup, customization, Actions, webhooks, and migrations • Google, Microsoft, and social login integrations • Enterprise SSO with Okta, Entra ID, and SAML • OAuth 2.0 / OIDC flows across multiple web applications • Multi-tenant roles, permissions, and tenant isolation • JWT validation, refresh-token rotation, and session fixes • Authentication audits and production bug fixes • Secure productionization of AI-generated or vibe-coded SaaS apps Selected experience: • Designed and delivered enterprise SSO for a multi-tenant SaaS platform • Resolved 50+ production issues at Torre • Contributed features, QA, and fixes to multiple Tiki Wiki CMS and Cypht releases • Built and operated SaaS products including GeekForge Cloud and Rafiki Stock Typical stack: TypeScript, React, Next.js, Node.js, PHP, Laravel, PostgreSQL, MySQL, AWS, Docker, and Auth0. You receive working code, clear communication, practical tests, and documentation your team can maintain. I respond within hours and work in English and French. Send me your current stack and identity problem, or book a 30-minute consultation for an authentication review.