Owning backend architecture and billing for an expense platform built for volunteer and nonprofit organizations.
- Architected a Supabase backend with row-level security and multi-org RBAC (admin, treasurer, member), plus SSO/OAuth 2.0 flows hardening authentication, session handling, and data protection across the codebase.
- Integrated the Stripe API end-to-end for subscription billing - webhooks, idempotency, and failure recovery - owned the CI/CD deployment pipeline, and rebuilt the React frontend for improved UX and accessibility.



