Backend / API Engineer

Use typed routes, validation, auth, DB access, error handling, logging, tests, and deployment boundaries.

Use Pydantic schemas, dependency injection, auth, database sessions, async/background tasks, and tests.

Use schema design, resolvers, authorization, dataloaders, pagination, caching, and backwards-compatible evolution.

Use event schema, idempotency keys, retries, dead-letter queues, observability, and failure handling.

Use authN/authZ, input validation, rate limiting, webhook signatures, secrets, audit logs, and threat modeling.