Senior Full Stack Engineer - AI, RAG & Cloud (Madrid)

Santander is seeking a Senior Full Stack Engineer based in Madrid to design and operate secure, scalable applications and APIs for the Knowledge Base Platform, collaborating with AI, Data, Cloud, DevOps, Product, and Security teams. You will work on production-grade capabilities for RAG, GraphRAG, semantic search, and AI agents, using FastAPI, React, Python, AWS, Docker, Kubernetes, and infrastructure-as-code, in a regulated enterprise environment with hybrid work arrangements. J-18808-Ljbffr