Senior Data Scientist – AI-Driven Growth & Experimentation

Smadex; Barcelona; Hybrid; EUR 70,000 - 120,000; Full time

Benefits offered by this job

Excellent compensation

Barcelona location in the heart of the

Hybrid work model

Meal vouchers

Continuous learning opportunities

Job summary

Smadex, a Barcelona-based performance advertising engine, is seeking a Senior Data Scientist to shape the future of our mobile advertising platform. You will sit at the intersection of product, engineering and business, turning massive user data into scalable insights and strategic decisions.

Own the analytical loop, design rigorous experiments, and build reusable analytics frameworks. Partner with product, ML and commercial teams to translate findings into action, mentoring juniors and raising

Qualifications

• 5+ years of proven experience as a Data Scientist or Product Analyst.
• Bachelor’s or Master’s degree in Mathematics, Statistics, CS, DS, or Economics.
• Strong Python and SQL skills with large-scale data.

Responsibilities

• Influence Product and ML strategy through rigorous data analysis.
• Design and evaluate A/B/multivariate experiments to assess features and models.
• Translate technical insights into actionable recommendations for cross-functional teams.

Skills

Data Science

Python

SQL

Communication

Leadership

Education

Bachelor’s or Master’s in a quantitative field

Tools

Cloud data warehouses

Big data tools

Job description

Smadex, a Barcelona-based performance advertising engine, is seeking a Senior Data Scientist to shape the future of our mobile advertising platform. You will sit at the intersection of product, engineering and business, turning massive user data into scalable insights and strategic decisions.

Own the analytical loop, design rigorous experiments, and build reusable analytics frameworks. Partner with product, ML and commercial teams to translate findings into action, mentoring juniors and raising