Senior Backend Engineer (Python)

We’re looking for a Senior Backend Engineer (Python) who will join our team.

What will you do:

• Design and build backend services in Python (FastMCP, FastAPI)

• Implement MCP tool and agent-ready workflows (tool schemas, orchestration)

• Build async pipelines using asyncio (concurrent I/O, task orchestration, background jobs)

• Integrate with LLM services: prompt engineering, structured output parsing, token/cost management

• Develop RAG pipelines: embeddings, vector search, retrieval strategies, chunking

• Research and prototype new approaches: evaluate models, benchmark retrieval methods, experiment with agent architectures

• Design experiments, track quality metrics, turn R&D findings into production features

• Develop APIs for AI agents and internal dashboards

• Ensure stability, observability, and cost-efficient inference

About you:

• 5+ years Python backend experience

• Strong async web framework experience (FastAPI or similar)

• Deep understanding of asyncio: gather, semaphores, task groups, error propagation

• PostgreSQL and advanced SQL (complex joins, window functions, query optimization)

• R&D mindset: running benchmarks, and iterating quickly on prototypes

• Experience with microservice integrations: long-running jobs, retries, failure handling

• Basic observability skills (logging, Prometheus, Sentry)

• Experience with Docker, Kubernetes, AWS infrastructure

• Experience with LLM integrations: prompt design, API calls, response handling, retries