Senior Growth Data Scientist - Revenue Growth (Barcelona)

Smadex; Barcelona; On-site; EUR 70,000 - 110,000; Full time

Benefits offered by this job

Private Health Insurance

Meal vouchers

Gym allowance

Learning opportunities

Job summary

Smadex, a performance advertising engine for mobile apps, is seeking a Senior Growth Data Scientist to drive revenue growth and advertiser success across our global platform. You will operate at the intersection of Commercial, Operations, Product, and Machine Learning to transform large behavioral datasets into scalable growth strategies and rigorous incrementality frameworks.

This is a full-time role based in Barcelona, requiring autonomous leadership and the ability to translate complex

Qualifications

• 5+ years of proven experience as Growth Data Scientist or in related roles.
• Bachelor’s or Master’s in a highly quantitative field (Math/Stats/CS/Data Science/Economics).
• Proficiency in Python and SQL; experience with cloud data warehouses.
• Deep expertise in statistical modeling, hypothesis testing, causal inference, and incrementality measurement.
• Strong verbal and written communication in English; ability to present to executives and non-technical stakeholders.
• Evidence of ownership with a track record of turning ambiguous problems into measurable impact.

Responsibilities

• Own the analytical strategy for campaign optimization and advertiser growth.
• Design, execute, and evaluate advanced measurement and experimentation methodologies (A/B testing, incrementality, causal inference).
• Partner with advertisers and internal leads as a trusted strategic advisor.
• Translate market trends and learnings into product and ML roadmap inputs.
• Mentor junior data scientists and promote analytical best practices.

Skills

Python

SQL

Statistical modeling

Experimentation

Communication

Ownership

Education

Quantitative degree

Tools

Cloud data warehouses

Job description

Smadex, a performance advertising engine for mobile apps, is seeking a Senior Growth Data Scientist to drive revenue growth and advertiser success across our global platform. You will operate at the intersection of Commercial, Operations, Product, and Machine Learning to transform large behavioral datasets into scalable growth strategies and rigorous incrementality frameworks.

This is a full-time role based in Barcelona, requiring autonomous leadership and the ability to translate complex