SSO Authentication System
Centralized single sign-on system supporting multiple authentication providers and enterprise-grade security.
Role
Backend Developer
Timeline
Apr 2022 - Aug 2022
Tech Stack
Project Overview
Challenges & Solutions
Key engineering problems I solved during this project.
Multi-provider Auth
Built OAuth2/OIDC adapters for Google, Microsoft, and custom LDAP providers with unified API.
Session Management
Implemented Redis-based session storage with distributed token validation for scalability.
Security Hardening
Added MFA support, rate limiting, IP whitelisting, and comprehensive audit logging.
Token Refresh
Designed seamless token rotation with sliding expiration to balance security and UX.
Outcome
The SSO system has unified authentication across 15+ enterprise applications, eliminating password fatigue and reducing support tickets related to login issues by 80%.
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