5+ years designing, building, and maintaining production backend services at scale. 10+ years if Lead level engineering candidate.
Expert-level Python for server-side development; solid grasp of at least one web/async framework (e.g. aiohttp, FastAPI, Flask) and the WSGI/ASGI model.
Service and API design: REST (and/or gRPC), request/response and streaming patterns, pagination, versioning, idempotency, and backward-compatible contracts.
Data layer: SQL and data modelling, query optimization and indexing, transactions, connection pooling;
experience with relational, warehouse (Snowflake), and NoSQL/key-value (DynamoDB) stores.
Server-side patterns: caching strategies, background jobs/workers, queues and event-driven processing, rate limiting, retries/backoff, and timeouts.
Performance & reliability: profiling, load handling, latency/throughput trade-offs, graceful degradation, and designing for failure.
Observability: structured logging, metrics, distributed tracing, and debugging live production issues.

Python Backend Engineer

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