Python Backend Developer – AI & AWS

About the role

CLEEVEN, a European consulting company, is looking for a Python Backend Developer to contribute to an AI-powered knowledge management platform built for enterprise software projects. The solution uses AI agents and Retrieval-Augmented Generation (RAG) to retrieve and process large volumes of enterprise documents. You will join a technical team focused on backend development, code quality and reliable cloud-based services.

Key responsibilities

• Develop and maintain Python backend services and REST APIs using FastAPI.
• Implement AI agent workflows and integrations with frameworks such as LangGraph.
• Build secure communication between services and AI agents.
• Integrate document retrieval and search with AWS services, using S3, DynamoDB and Bedrock.
• Write automated tests and contribute to Docker-based CI/CD pipelines.
• Review and improve AI-generated code for maintainability, performance and reliability.
• Collaborate with architects and developers to deliver production-ready solutions.

Required profile

• Degree in Computer Science, Software Engineering or equivalent experience.
• Proven experience developing and maintaining backend applications in production.
• Ability to work independently within an established technical architecture.
• Interest in AI technologies and willingness to learn new frameworks.
• Good communication skills and a collaborative mindset.

Required skills

• Strong Python, including clean code, asynchronous programming and automated testing.
• Hands-on experience with FastAPI or similar frameworks; REST APIs, authentication and service-to-service communication.
• AWS, especially IAM, S3 and NoSQL databases.
• GitHub, pull requests, code reviews and CI/CD pipelines.
• Docker and containerized applications.
• Nice to have: LangGraph, LangChain, RAG, embeddings, vector databases, OpenSearch, Bedrock, LangSmith, and AI-assisted tools such as Kiro or GitHub Copilot.