Senior Data Scientist (Marketing Mix Modeling) Location: Remote from EMEAStart date: ASAPDuration: 6–7 months contract (B2B) + extensions Engagement: 40 hours a week Rate: €25–€35/h (B2B)Role Overview We are looking for a Senior Data Scientist with strong experience in experimentation, predictive modeling, and marketing analytics. You will work closely with internal and external stakeholders to drive insights, validate models, and ensure data-driven decision-making.Requirements (Must-Have)5+ years in data science, analytics, consulting, or similar quantitative roles. Strong skills in SQL and predictive modeling using Python or R. Proven experience in experimentation, including causal inference, A/B testing, and advanced statistical analysis. Experience in the Marketing domain, including attribution models and MMM (Marketing Mix Modeling). Demonstrated ability to work directly with business stakeholders. Excellent communication in English.ResponsibilitiesMarketing Mix Modeling Collaborate closely with external vendors to build marketing mix models across ~30 global markets. Ensure model correctness, validate methodologies, and oversee proper data usage. Design and run experiments to calibrate and validate MMM outputs. Support accuracy checks, scenario testing, and provide deep analytical insights to marketing teams. Design and execute A/B tests, causal inference analyses, and other experimentation frameworks. Write advanced SQL queries to extract, manipulate, and validate large datasets. Build predictive models using Python or R, applying best practices in statistical modeling.If interested, please apply with an up to date CV