Senior Data Scientist – Advertising Measurement Analyst

Titan Operating System S.L. (Titan OS) is a Barcelona-based technology, entertainment and advertising company seeking a Senior Data Scientist to lead the development of predictive audience models for advertising measurement. You will turn smaller seed, sample and observed datasets into robust predictions about larger populations, enabling advertisers to identify and target meaningful cohorts across Connected TV.

This is a highly technical role grounded in statistics, sampling theory and machine learning. The core challenge is to ensure sample representativeness, identify and correct bias, extrapolate responsibly to a wider population, and quantify uncertainty in predictions. You will combine Titan OS first-party data with seed audiences and other reference datasets to create predictive cohorts that can be activated for advertising. You will own the methodology from research and experimentation through validation, productionisation and ongoing model monitoring, collaborating closely with Data Engineering, Product, Commercial and Advertising teams.

Key responsibilities include: analyzing campaign exposure and performance across CTV, streaming, gaming and other content-app environments; measuring the impact of campaigns on app usage, acquisition, engagement, retention and re-engagement; translating complex behavioral and advertising data into clear, actionable insights and recommendations; defining KPIs and repeatable approaches for reach, frequency, incrementality, conversion and engagement; building scalable vi

Senior Data Scientist – Advertising Measurement Analyst

Titan Operating System S.L. (Titan OS) is a Barcelona-based technology, entertainment and advertising company seeking a Senior Data Scientist to lead the development of predictive audience models for advertising measurement. You will turn smaller seed, sample and observed datasets into robust predictions about larger populations, enabling advertisers to identify and target meaningful cohorts across Connected TV.

This is a highly technical role grounded in statistics, sampling theory and machine learning. The core challenge is to ensure sample representativeness, identify and correct bias, extrapolate responsibly to a wider population, and quantify uncertainty in predictions. You will combine Titan OS first-party data with seed audiences and other reference datasets to create predictive cohorts that can be activated for advertising. You will own the methodology from research and experimentation through validation, productionisation and ongoing model monitoring, collaborating closely with Data Engineering, Product, Commercial and Advertising teams.

Key responsibilities include: analyzing campaign exposure and performance across CTV, streaming, gaming and other content-app environments; measuring the impact of campaigns on app usage, acquisition, engagement, retention and re-engagement; translating complex behavioral and advertising data into clear, actionable insights and recommendations; defining KPIs and repeatable approaches for reach, frequency, incrementality, conversion and engagement; building scalable vi