What if your insights could directly shape how millions of ads reach their audience every day?Our client is a rapidly scaling, integral tech company redefining mobile app monetization through advanced data science and advertising intelligence. With a strong international footprint across Spain, Poland, and the United States, and a fully distributed team worldwide, they foster a culture built on diversity, collaboration, and technical excellence.As part of their growth in Barcelona, they are looking for an experienced Data Scientist to turn complex data into actionable insights, optimize advertising performance, and contribute to high-impact projects in a dynamic ad-tech environment.Main responsibilitiesExplore and analyze large and complex datasets to identify trends, patterns, and actionable insights, working independently on challenging data problems.Design, build, and deploy end-to-end data science solutions, from early analysis and model development to production, ensuring scalability and high performance.Develop and refine machine learning models focused on advertising use cases,



including ad targeting optimization, bidding strategies, and campaign performance evaluation.Partner with product, engineering, and business teams to translate commercial and technical needs into effective, data-driven solutions that improve advertising impact and ROI.Maintain, monitor, and enhance data pipelines and machine learning systems, particularly within ad-tech environments, adapting them to changing market dynamics.Work with modern data and ML tooling, including Python and SQL, data processing frameworks such as PySpark and Pandas, and cloud-based infrastructures.Leverage ETL and analytics platforms like Dagster and Druid or equivalent technologies, as well as ML frameworks such as PyTorch and related tooling; experience with Databricks is considered a plus.Core skills/experienceBachelor’s or Master’s degree in Computer Science, Statistics, Mathematics, or a related technical f

📌 AdTech Data Scientist — Hybrid, Relocation (Barcelona)
🏢 Babel Profiles
📍 Barcelona