IT STARTS HERE Santander ( is evolving from a
Country: Spain
IT STARTS HERE Santander ( is evolving from a integral, high-impact brand into a technology-driven organization, and our people are at the heart of this journey. Together , we are driving a customer-centric transformation that values bold thinking, innovation, and the courage to challenge what's possible.
This is more than a strategic shift. It's a chance for driven professionals to grow, learn, and make a real difference.
Our mission is to contribute to help more people and businesses prosper. We embrace a strong risk culture and all our professionals at all levels are expected to take a proactive and responsible approach toward risk management.
- Designing, building and deploying production-grade agentic AI systems - multi-agent orchestration with real memory, planning, tool use and error recovery. Not demos. Systems that work.
- Developing and fine-tuning small and medium language models (SLMs) for regulated banking use cases, including custom evaluation frameworks and domain-specific benchmarks.




- Architecting and implementing MCP servers, A2A protocols, and federated API layers that allow AI agents to operate across the group's multi-country infrastructure.
- Prototyping new ideas in two-week sprints: hypothesis, architecture, code, functional demo, one-pager. This is the lab's operating rhythm - you need to thrive in it.
- Collaborating with researchers, data scientists and business stakeholders to translate complex technical concepts into tangible bank value - Alchemy-style transformations of legacy assets.
- Keeping the lab at the frontier: monitoring emerging research, evaluating new tools (Harness Engineering, Kiro, Windsurf, Devin), and integrating them into the lab's workflow when they add real value.
- Producing clean, tested, observable code that can be handed off to the AI Science team for production scaling. You own your code end-to-end.

What You'll Bring
Our people are our greatest strength

📌 Santander Ai Lab (Chamartín)
🏢 Santander
📍 Chamartín