Senior Python Engineer (LLM Infrastructure/MCP Integration)

Senior Python Engineer (LLM Infrastructure/MCP Integration)
Bucureşti
Bucharest, Bucharest, Romania

Job Description

• Design and implement scalable, Python-based MCP servers and supporting microservices 
• Develop secure, resilient backend APIs and services (Fast
  API,  Pydantic,  asyncio) 
• Ensure compliance with secure Back-end engineering principles, including
  - driven contracts, input validation, rate limiting, secrets management, egress controls, and
  - injection protection 
• Implement observability and reliability frameworks (Open
  Telemetry metrics, traces, structured logging, retries, health checks, and idempotent workflows) 
• Collaborate with Front-end engineers to deliver a Type
  Script/React iframe component that communicates with the Open
  AI client 
• Partner with applied AI engineers to integrate evaluation, guardrails, and safe tool use patterns for LLMs in production 
• Contribute to packaging, dependency management, CI/CD pipelines, and internal developer tooling to accelerate MCP and agentic system deployment 

• 5+ years of experience with Python Back-end development  
• Proven experience building scalable microservices 
• Hands-on experience with MCP (Model Context Protocol) 
• Proficiency with Fast
  API,  Pydantic, and asyncio 
• Strong understanding of secure Back-end engineering principles 
• Experience with observability frameworks (Open
  Telemetry, structured logging) 
• Familiarity with Front-end integration (Type
  Script/React) 
• Experience with LLM integration and AI application infrastructure 
• Upper-Intermediate level of English or higher