All tracks
Fullstack track · 8 reviews · ~104 min

Fullstack Engineer · MERN

Review pull requests across the stack — client state and API contracts through to queries, transactions, and rollouts — in the fullstack combination you actually ship.

TypeScriptExpressReactPostgreSQL

The route

  1. Junior Steps 1–2
  2. Validate the API request body
    TypeScript · Express · 10 min
  3. Fix the component data binding
    React · 10 min
  4. Mid-level Steps 3–4
  5. Harden the auth flow end-to-end
    TypeScript · Express · PostgreSQL · 12 min
  6. Handle the loading & error states
    React · 12 min
  7. Senior Steps 5–6
  8. Untangle the N+1 behind the endpoint
    TypeScript · Express · PostgreSQL · 14 min
  9. Review the API contract both sides consume
    TypeScript · Express · 14 min
  10. Lead Steps 7–8 PRO
  11. Audit the transaction boundaries
    TypeScript · Express · PostgreSQL · 16 min
  12. Review the client rollout & optimistic UI
    React · 16 min