Senior Python Developer

Were looking for a Senior Python Developer to join our team in Madrid or Barcelona Spain in a hybrid working 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. Youll work closely with DevOps/MLOps teams and data scientists to operationalize advanced AI capabilities in a production environment.

• 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

• 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 scalability and monitoring practices
• Strong problem-solving skills and ability to work independently and collaboratively
• Excellent English communication skills

• Experience with vector databases or RAG (Retrieval-Augmented Generation) pipelines
• Hands-on experience deploying applications in Microsoft Azure environments
• Familiarity with observability tools and logging frameworks