Overview

As a Senior Product Engineer / AI Solution Architect, you will shape AI-powered integration and migration products for Santander’s large-scale banking environment. You’ll work within a small product-oriented team to turn roadmap ideas into usable technical components and reusable patterns. You’ll apply AI, LLMs and workflow automation to enterprise contexts, ensuring secure, observable and scalable solutions. This role combines hands-on engineering with product focus in a fast-changing financial tech landscape. Join a mission-driven bank driving a customer-centric transformation through AI and data.

Compensaciones / Incentivos

- hybrid working model
- learning platforms (Santander Open Academy)
- competitive rewards
- BeHealthy wellness program
- childcare support and family-friendly programs
- gym/WellHub, meal subsidy, parking

Responsabilidades

- Evolve AI-powered integration and migration products, translating roadmaps and country needs into technical options, designs and increments.
- Design reusable components, APIs, connectors, workflows and automation assets for scale across integration, modernization and decommissioning use cases.
- Apply LLMs, agentic AI, RAG/GraphRAG and workflow automation to practical enterprise scenarios, maturing prototypes into robust capabilities.
- Define guardrails, engineering practices and quality criteria aligned with Santander standards, governance, cybersecurity and cloud guidelines.
- Evaluate vendor and open-source solutions,



contribute to buy-vs-build decisions and integrate selected capabilities into Santander environments.
- Contribute to reference architectures, documentation, playbooks and reusable patterns, supporting PoCs and early adoption feedback.
- Collaborate with Product Adoption & Value, Architecture, Cloud, vendors and country teams to translate needs into backlog inputs and technical recommendations.

Requisitos principales

- 6+ years of experience in software engineering, solution architecture, cloud engineering, AI engineering or technical product development.
- Hands-on experience building or evolving digital products, platforms, automation tools or integration capabilities.
- Practical experience with AI-enabled systems, LLM use cases, code analysis, workflow automation, RAG or AI-assisted software engineering.
- Experience with APIs, enterprise integrations, cloud services, DevOps and secure software delivery.
- Experience collaborating with product owners, vendors, architects and delivery teams in complex environments.
- Bachelor in Computer Science, Engineering, Telecommunications, Mathematics, Physics or related field.

- Strong product mindset
- Clear communication with non-specialist stakeholders
- Hands-on ownership
- Python or equivalent language; APIs; Git; testing and maintainable code
- AI/LLM engineering: LLMs, agents, RAG/GraphRAG, prompts and workflow design
- Integration technologies: REST APIs, connectors, event-driven patterns, secure enterprise integration

📌 Senior Product Engineer / AI Solution Architect - Grupo Santander (Madrid)
🏢 Grupo Santander
📍 Madrid