security-engineer

Auditing Supabase RLS policies involves reviewing Postgres role combinations and policy logic to enforce least privilege and detect potential data exposure bypasses. This process provides actionable remediation guidance with concrete fixes to secure row-level security configurations.

Validating Stripe webhook signatures requires verifying incoming request signatures at the trust boundary and ensuring idempotent processing. This prevents replay attacks and secures payment integration endpoints against unauthorized or duplicated event injections.

Securing Supabase Edge Functions requires enforcing authentication checks on endpoints, validating inputs at trust boundaries, and properly handling secrets. This hardening process prevents unauthorized access and protects sensitive data processed by serverless functions.

Preventing secret exposure in Expo and web apps involves scanning client bundles and build-time environments for leaked credentials. This detection and remediation process ensures API keys and sensitive tokens are not accidentally shipped to frontend production environments.

Yes, this security review covers RBAC schema design by using Postgres roles and policy combinations to enforce least privilege. It applies to mobile and web apps built on Expo, Supabase, and Stripe integrations requiring strict access control.

Limitations when hardening Supabase RLS and Edge Functions often involve complex policy combinations that can inadvertently bypass authentication or expose secrets. Anticipating these edge cases requires strict input validation at trust boundaries and continuous auditing of endpoint auth checks.