Must-have skills
Foundations
Python; FastAPI; Pydantic; OpenAPI-minded API design.
API implementation validation, structured errors, timeouts, health/readiness, environment-based config.
AuthN/AuthZ on APIs OIDC-derived identity, API keys, route guards, least-privilege gates.
Support for API client management backends CRUD, key expire/rotate patterns, audit events, user/role checks.
Postgres SQL, migrations (Alembic and/or Prisma), connection config.
LangChain / LangGraph for simple workflows; operational triage of D&A agents (config, dependencies, queues,
streams, provider errors).
Langfuse and / or LangSmith (or similar) navigate traces, correlate request IDs with API/SSE logs, spot provider errors,
timeouts, and bad tool-call patterns.
API Gateway / Lambda / SAM hands-on.
EventBridge, Kafka, Weaviate awareness.
Terragrunt leaf edits with SRE guidance (deeper Terragrunt/Atlantis for P4).
Cloudflare Workers.
