AI Engineer (LLM & Agents)

SIX
📍 Madrid, Community of Madrid, Spain 💼 Full-time 🕒 Posted February 22, 2026

Job Description

What You Will Do


  • Architect Multi-Agent Systems: Design, build, and orchestrate complex agentic workflows using LangGraph and LangChain to handle sophisticated financial queries.

  • Engineer Robust Tool Interfaces: Develop and maintain reliable tool definitions for interacting with complex internal APIs, ensuring the AI can accurately parse, validate, and utilize financial data.

  • Implement Advanced RAG: Build and optimize Retrieval-Augmented Generation systems to ground model responses in proprietary data.

  • Drive Structured Output Generation: Ensure AI responses are structured for rich UI rendering, enabling the generation of dynamic graphs, charts, and interactive elements.

  • Establish Evaluation Pipelines: Create rigorous testing frameworks and metrics to evaluate agent performance, reliability, and accuracy in a production environment
  • What You Bring

  • 5+ years of experience as Data...
  • Ready to Apply?

    Submit your application today and join our talented team at SIX.

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    Job Details

    • Location Madrid, Community of Madrid
    • Job Type Full-time
    • Category Computer Occupations
    • Posted Date February 22, 2026
    • Application Deadline April 03, 2026