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Contract / Freelance

Agentic AI Engineer (Life Sciences & Knowledge Graphs) Barcelona, Catalonia, Spain (Remote)


Want to build AI agents that actually give trustworthy, explainable answers not confident guesses? This is a role for a GenAI engineer who knows that the way you get there is by grounding LLMs in real, governed enterprise knowledge.

You’ll join a specialist team at a global life-sciences organisation building a new generation of knowledge-graph-powered AI agents. Your focus is the tooling and the applications on top of the intelligence layer, not the underlying data.

 

What you will build:

Picture an agent that answers a question like “which priority hospitals in the US have decreasing sales?” To do it, the agent reads the definitions of the business terms from a knowledge graph so it understands the question, then queries the data warehouse for the real figures, and composes a grounded, traceable answer.

That grounding is the whole point: it’s what cuts hallucination and makes every answer explainable. If building that kind of system sounds like your idea of a good problem, read on.

 

What you will do:

  • Design and build LLM-powered agents and retrieval solutions on top of enterprise knowledge and data
  • Connect agents to enterprise systems through tool definitions and MCP-style connections
  • Benchmark and evaluate models, then take solutions from prototype into production
  • Build reusable frameworks and accelerators for agentic AI
  • Define the testing, evaluation, monitoring and governance for what you ship

 

What you will bring (essential):

  • Strong hands-on GenAI / LLM engineering – you’ve built real solutions with LLMs: agents, RAG, prompt and tool design, benchmarking, and shipping to production
  • Hands-on experience with knowledge graphs and semantic web in applications – SPARQL, RDF and related standards
  • Strong Python and modern API development
  • Solid software engineering fundamentals — Git, CI/CD, testing, cloud-native architecture
  • A clear communicator who works well with both technical and business stakeholders

4+ years of AI engineering experience is a starting point — we care far more about genuine depth building LLM-powered systems than years on paper.

 

Nice to have:

  • MCP (very learnable if you know LLMs and Python)
  • Vector databases, embeddings and semantic search
  • Any graph or semantic tooling — Neo4j, Stardog, metaphactory, Snowflake and similar (current set up is standards-based and vendor-neutral, so the standards matter more than any one product)
  • Life sciences, pharma or other regulated-industry experience

 

The details:

  • Contract role
  • EU-remote based
  • Occasional on-site workshops in Germany (roughly every couple of months)
  • Start: 1st October
  • Runs to year-end initially, with strong potential to extend into a full project in the new year

 

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