We're looking for a Senior Python Developer to join our team in Madrid or Barcelona, Spain in a hybrid working mode. In this role, you will design and implement secure, high-performing backend services that enable generative AI-driven applications across Azure. You will develop GraphQL APIs, optimize relational database structures and integrate AI/LLM functionalities to deliver scalable solutions. Join a cutting-edge AI platform initiative where your backend engineering expertise will power secure, scalable and innovative AI solutions, improving enterprise productivity and enabling next-generation services. You’ll work closely with DevOps/MLOps teams and data scientists to operationalize advanced AI capabilities in a production environment. Responsibilities * Design, build and maintain GraphQL APIs using FastAPI and Strawberry * Integrate AI and LLM APIs (e.g., OpenAI, Anthropic)



into backend services with secure data handling * Architect relational database schemas and implement version-controlled migrations for consistency and performance * Collaborate with DevOps/MLOps teams to containerize and deploy services on Azure * Monitor, troubleshoot and optimize backend performance for speed, scalability and cost efficiency * Implement unit and integration tests to ensure reliability and maintainability * Apply best practices for API security, performance tuning and error handling * Participate in CI/CD processes and improve observability for production systems Requirements * Degree in Computer Science, Software Engineering or related field * Proven experience as a Python Developer building backend services with FastAPI * Hands-on experience developing GraphQL APIs with tools such as Strawberry * Strong knowledge of SQL and relational database design; experience with ORMs (e.g., SQLAlchemy) * Familiarity with integrating AI/LLM APIs and Model Context Protocol (MCP) * Proficiency in Git, Docker and CI/CD fundamentals * Understanding of performance optimization, scalabili

📌 Senior Python Developer (Madrid)
🏢 Epam Systems
📍 Madrid