Senior Data Scientist, AI Evaluation & Product (Hybrid)

Grupo Santander; Jaén; Hybrid; EUR 70,000 - 110,000; Full time

Benefits offered by this job

Hybrid work model

Competitive rewards

BeHealthy wellness program

Job summary

Santander in Spain is seeking a Senior Data Scientist – AI Evaluation & Product to lead the design and delivery of evaluation methodologies and AI-focused products. You will bridge business needs with AI capabilities, driving measurable value across global initiatives.

You will define evaluation methodologies, analytical capabilities, and produce scalable solutions, combining technical depth with a product mindset in a dynamic, hybrid work environment.

Qualifications

• MSc or PhD in Computer Science, Artificial Intelligence, Data Science, Statistics, Mathematics, Engineering, or another related quantitative field.
• Experience evaluating AI systems, machine learning models, or intelligent applications through benchmarking, experimentation, or quality‑assessment frameworks.
• Knowledge of Generative AI, large language models, conversational systems, retrieval‑augmented generation, or agent‑based systems.
• Strong professional experience delivering Data Science or Machine Learning solutions in complex, real-world environments.
• Deep scientific and analytical foundations, including statistics, experimentation, model evaluation, and machine learning.
• Advanced programming skills in Python and strong experience with the modern Data Science ecosystem, data analysis libraries, and machine learning frameworks.

Responsibilities

• Design analytical frameworks, methodologies, and products focused on evaluating and improving AI systems.
• Lead end-to-end Data Science initiatives from problem framing to deployment.
• Design metrics, benchmarks, and testing strategies for AI system evaluation.
• Collaborate with Product, Engineering, Research, Validation, and Business teams to shape priorities and roadmaps.
• Produce high-quality analytical assets and production-ready capabilities with sound software engineering practices.

Skills

Data Science

Machine Learning

Statistics

Experimentation

Benchmarking

Education

MSc/PhD in CS/AI/DS/Stats

Tools

Python

Job description

Santander in Spain is seeking a Senior Data Scientist – AI Evaluation & Product to lead the design and delivery of evaluation methodologies and AI-focused products. You will bridge business needs with AI capabilities, driving measurable value across global initiatives.

You will define evaluation methodologies, analytical capabilities, and produce scalable solutions, combining technical depth with a product mindset in a dynamic, hybrid work environment.