CareerPlan

Principal Lead Data Scientist / Applied AI

28050, MADRID, Madrid, ESFull-time2026-11-06 → 2026-11-10

Core

Principal Data Scientist leading Applied AI innovation, GenAI evaluation, and the development of production LLM and agentic systems for strategic banking use cases.

Role type

Principal Lead Data Scientist / Applied AI

Builds

Production ML pipelines, LLM-based solutions, agentic systems, and backend services for Commercial Banking, CIB, and Finance.

Domain

Banking / Generative AI / Large Language Models

Deliverable

production ML models

Required skills

Machine Learning Engineering, GenAI evaluation, LLM fine-tuning, Agentic system design, MLOps, Cloud infrastructure (AWS/GCP), Python, Data pipeline construction, A/B testing methodology

Preferred skills

International leadership, Multi-country experience, TypeScript/Node.js, On-premise environments, Banking sector experience

Technologies

LangGraph, Agents SDK, AWS Strands, Python, TensorFlow, AWS, GCP, CloudFormation, Git, CI/CD

Responsibilities

Select and evaluate foundational models for language, voice, and multimodal applications; Design and develop LLM solutions and agentic architectures; Build reasoning flows and model orchestration; Develop inference pipelines and backend services; Communicate technical concepts to non-technical audiences.

Seniority

Principal, hands-on IC with team management