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Senior Data Scientist

Barcelona💼 Full-time🗓 2026-06-13 → 2026-09-23

Core

Shape the future of a mobile advertising platform by transforming raw behavioral data from millions of global users into scalable strategies at the intersection of product, engineering, and business.

Role type

Senior IC data scientist (product & ML strategy)

Builds

Scalable decision-making frameworks, reproducible data models, and high-impact data visualization assets

Domain

Advertising technology (ad-tech) / Mobile programmatic advertising

Deliverable

production ML models

Required skills

Python, SQL, statistical hypothesis testing, causal inference, regression methodologies, data modeling, data visualization, cross-functional leadership, project ownership

Preferred skills

Ad-tech industry background, mobile programmatic advertising (DSP/SSP), user acquisition (UA), mobile app measurement frameworks (MMPs), LTV optimization, incrementality analysis

Technologies

Cloud data warehouses

Responsibilities

Own the analytical loop influencing Product and ML strategies; Design and evaluate sophisticated experimentation frameworks (A/B testing, multivariate testing); Establish and govern key performance frameworks; Build reproducible data models and processes; Design data visualization assets for self-service insights; Act as strategic data partner for engineering, product, and business teams; Mentor junior team members and establish best practices

Seniority

Senior, hands-on IC with strategic influence

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