Ali Lee

Hi! I'm interested in the opportunity. **Cascade.** I'm a Senior Full Stack Engineer with 9+ years of experience building SaaS platforms using PostgreSQL, Supabase, Node.js, and TypeScript. Regarding PostgreSQL and RLS, one project I'm particularly proud of involved designing a multi-tenant architecture where Row-Level Security policies isolated tenant data while allowing administrators controlled cross-tenant access. I also implemented SQL functions, triggers, role-based permissions, and append-only database migrations to ensure security and maintainability. A risk I identified on another project involved authorization being enforced only in the frontend. I recommended moving access control into the database using RLS and backend validation, preventing unauthorized access that would have been possible through direct API calls. I explained the security implications to a non-technical stakeholder and proposed a safer implementation before launch. I enjoy working in environments where AI accelerates development but human engineering judgment is responsible for security, architecture, and production quality. **Rate:** $70/hour **Availability:** 8–10 hours/week with US Eastern overlap. Portfolio: https://alilee.vercel.app I'd be happy to complete the paid technical exercise and discuss how I can contribute to the project.