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
Минск
от 4000 USD