I will build a secure supabase backend with auth and row level security

Most Supabase projects I'm asked to look at have the same hole: row-level security is switched on, but the policies let any signed-in user read rows that aren't theirs. It works in testing because everyone is testing with one account.

I build the data layer properly the first time.

What's included:

• Schema design: tables, relationships, constraints and indexes that match how your app actually reads data
• - Row-level security policies, written per table and tested against real user sessions
• - Authentication, including multi-factor where it matters
• - Tables that must never be written from the client locked to server-side only
• - Audit logging, so you can see who changed what
• - Encrypted off-site backups with a restore you have actually tested
• - Migrations you can run yourself, and documentation of every policy

I built and own the data and security layer of a production B2B platform: Postgres schema, RLS model, multi-factor authentication enforced in the app, in the policies and at the API edge, and financial tables hard-locked against client writes. 3,000+ tests.

Send me your current schema or project and I will tell you what I would change.