Build polished, fast product experiences and evolve a workflow engine.
Requirements
- Strong backend skills in Python (FastAPI preferred): API design, testing, error handling, schema/versioning.
- Experience deploying/operating with Docker and a major cloud (AWS preferred: ECS/EKS/Lambda, SQS, CloudWatch).
- Proven work on workflow/job systems: queues, retries, idempotency keys, scheduling, and run histories.
- Comfortable with Postgres (or MySQL) schema design and Redis (caching, rate limiting, locks).
- Performance mindset: RSC/Server Actions, data-fetching patterns, bundle/TTFB tuning, DB query perf.
- Production observability: logs, traces, metrics (e.g., Langfuse, OpenTelemetry, Sentry), and on-call pragmatism.
- Solid security hygiene (PII handling, secrets, JWT/session auth, CSRF/CORS, least-privilege access).
Responsibilities
- Build polished, fast product experiences in Next.js + TypeScript (design-quality UI, accessible components, responsive layouts).
- Design clean backend contracts and APIs (FastAPI/Python) for workflows, jobs, billing, and auth.
- Evolve our workflow engine (DAG/state machine): scheduling, retries/idempotency, rate limits, progress tracking, logs, and user-visible run history.
- Ship data pipelines and background workers (Celery/queues), with strong observability and alerting.
- Scale and harden the stack on AWS + Docker (ECS/EKS or similar), with caching (Redis), pagination, backpressure, and cost controls.
- Implement product features end-to-end: DB schema → API → UI, including tests and telemetry.
- Contribute to billing (Stripe), permissions/RBAC, and realtime UX (SSE/WebSockets) for run status.
Other
- Maintain a high bar for reliability, performance, and UX; instrument everything.
