IT STARTS HERE Santander (www.santander.com) is evolving from a
Country: Spain
IT STARTS HERE Santander (www.santander.com) 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 o

📌 Santander AI Lab (Madrid)
🏢 Santander
📍 Madrid