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December 17, 2025

Python GenAI Developer

Mid • Remote

$100 - $140/

Warsaw, Poland

At Madiff, we connect top IT talent with cutting-edge companies through remote Agile teams and nearshore outsourcing. With operations in Poland, Portugal, France, and the UK, we specialize in AI, DevOps, and Cybersecurity – supporting industries like Telecom, Banking, and Hi-Tech.


Are you passionate about building scalable backend services and working with the latest GenAI technologies?

Our client from the technology & digital innovation industry is looking for a Python Developer with GenAI Experience to strengthen a team developing AI-driven backend services and blockchain-integrated platforms.


Key responsibilities

  • Build Python-based microservices using FastAPI and asyncio, integrating with LLM APIs such as OpenAI and Anthropic

  • Develop RAG pipelines, manage embeddings, and work with vector databases including Pinecone and Chroma

  • Orchestrate AI workflows involving prompt routing, fallback logic, tool calling, and memory-handling mechanisms

  • Integrate with MongoDB, process structured and unstructured data, and deploy solutions using Docker

  • Collaborate closely with frontend, DevOps, and data teams to expose internal APIs powering AI capabilities

  • Support blockchain-related data pipelines and smart contract integrations


What we are looking for

  • 3+ years of experience in Python backend development, including 1–2+ years working with LLMs or GenAI

  • Strong skills with FastAPI/Django/Flask and LangChain/LangGraph

  • Hands-on experience with Docker, Git, vector databases, and cloud environments (preferably Azure)

  • Understanding of token limits, prompt design, and API integration patterns

  • Strong communication skills and English at B2+ level


Nice to have:

  • Familiarity with prompt templating tools (jinja2, guidance)

  • Experience with OpenAI function calling or Anthropic tool use

  • Exposure to evaluation frameworks such as LangSmith or TruLens

  • Knowledge of Azure OpenAI and cloud API gateway integrations

  • Ability to collaborate effectively with frontend teams consuming AI-powered endpoints


What we offer

  • Remote work model with flexible approach to collaboration

  • Long-term cooperation with a stable and fast-growing international organization

  • Work in a skilled, cross-functional team building next-generation AI solutions

  • Professional development opportunities within high-impact AI and digital transformation projects