? Capitole keeps growing, and we want you to grow with us ?

We are looking for an AI Engineer to join an innovative team working on next-generation Generative AI applications for a leading international airline group.
In this role, you'll design, build, and deploy intelligent systems powered by Large Language Models (LLMs), helping transform the way users interact with data and AI-driven services.
If you enjoy working with the latest AI technologies in a collaborative Agile environment, we'd love to hear from you

What you'll be doing
- Design, develop, and maintain LLM-powered applications and multi-agent AI systems.
- Build and optimize Retrieval-Augmented Generation (RAG) pipelines, including document ingestion, chunking, embeddings, and semantic search.
- Implement and manage vector databases to enable efficient AI-powered information retrieval.
- Develop scalable backend services and APIs using Python and FastAPI.
- Build and maintain data pipelines using tools such as Apache Airflow.
- Deploy and manage AI workloads on AWS using services such as Bedrock, SageMaker, Lambda, S3,



and Aurora.
- Evaluate and improve LLM performance through automated testing and human-in-the-loop validation.
- Collaborate closely with Product Managers, Data Engineers, and business stakeholders to deliver innovative AI solutions.
- Mentor junior engineers and contribute to AI engineering best practices.
- Stay up to date with the latest trends in Generative AI and continuously explore new technologies.

What we're looking for
- 3–5+ years of experience in Software Engineering, including at least 1–2 years focused on AI/ML or Generative AI.
- Strong programming skills in Python.
- Hands-on experience building LLM-based applications using frameworks such as LangChain, LangGraph, CrewAI, or similar.
- Solid experience designing and implementing RAG architectures.
- Experience working with LLM APIs such as OpenAI, AWS Bedrock, Anthropic, or similar.
- Knowledge of vector databases (Pine

📌 AI Engineer (Barcelona)
🏢 Capitole
📍 Barcelona