AI Engineer (Barcelona)

AI Engineer / LLM Engineer

We are looking for an AI Engineer to join a dynamic AI team within an international technology environment. In this role you will design, build, and deploy LLM-powered applications, RAG pipelines, multi‑agent systems, and scalable AI solutions on AWS.

Responsibilities

• Design, build, and maintain LLM‑powered applications and multi‑agent systems using frameworks such as LangChain, LangGraph, CrewAI, or similar.
• Develop and optimise RAG pipelines, including document ingestion, chunking strategies, embedding generation, retrieval logic, and vector search.
• Implement and manage vector databases such as pgvector on Aurora, OpenSearch, Pinecone, or similar.
• Build and maintain data and ETL pipelines using Apache Airflow, Prefect, or other tools.
• Develop backend services and APIs in Python/FastAPI to serve AI models, RAG systems, and agent workflows.
• Deploy and manage AI workloads on AWS s...