? AI Engineer / LLM Engineer ?

?
About the role

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.

You will work at the intersection of
software engineering, AI engineering, data pipelines, and cloud deployment
, contributing to real use cases across the group. This role is highly hands-on and focused on building intelligent systems that move from experimentation to production.

You will work closely with Data Scientists, Platform and DevOps Engineers, Data Engineers, domain experts, Product Managers, and the Tech Lead to move AI solutions from experimentation into production.

If you enjoy working with
LLMs, agents, RAG, vector databases, Python APIs, and AWS-native AI services
, this could be a great fit.

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What you’ll do

? Design, build, and maintain
LLM-powered applications
and multi-agent systems primarily using
LangGraph
and
LangChain
,



alongside tools such as CrewAI or similar frameworks

? 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 similar 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
services such as
Bedrock, SageMaker, Lambda, S3, Aurora/RDS, EC2

? Work with
Docker and Kubernetes
to containerise and orchestrate AI workloads

? Design and execute evaluation frameworks for LLM outputs, including automated testing, LLM-as-judge approaches, and human-in-the-loop review

? Work with LLM APIs and orchestration tools such as
AWS Bedrock, OpenAI API, Anthropic API
, or s

📌 AI Engineer (Barcelona)
🏢 Capitole
📍 Barcelona