Frontier Agentic AI Engineer — Santander AI Lab

Frontier Agentic AI Engineer – Santander AI Lab

Country: Spain

Location: Madrid, Spain

We are the applied innovation engine of one of the world’s largest banks, building production‑grade agentic AI systems that drive business value across a multi‑country infrastructure. Join us to design, prototype, and scale cutting‑edge AI solutions for regulated banking use cases.

Responsibilities

• Design, build and deploy production‑grade agentic AI systems – multi‑agent orchestration with real memory, planning, tool use and error recovery.
• Develop and fine‑tune small and medium language models (SLMs) for regulated banking use cases, including custom evaluation frameworks and domain‑specific benchmarks.
• Architect and implement MCP servers, A2A protocols, and federated API layers that enable AI agents to operate across the group’s multi‑country infrastructure.
• Prototype new ideas in two‑week sprints: hypothesis, architecture...