Senior Data Scientist – Marketing Measurement & Causal Inference (m/f/d)

At Flix, we offer a dynamic work environment with competitive pay, strong growth opportunities, and a tech-driven approach to making travel more accessible, sustainable, and affordable. As a Senior Data Scientist in our Commercial & Marketing Intelligence team at Flix, you can make an impact by owning and evolving our causal measurement practice — designing and running experiments that directly shape how we allocate our global marketing budget. You will work closely with a dedicated team across Marketing & Sales, Revenue Management, Reporting, and Engineering to ensure our incrementality evidence drives smarter, more transparent choices at scale. About the Role • Own the design, execution, and continuous improvement of geo-based, time-based, and synthetic control experiment frameworks, ensuring methodological rigour and scalability across global markets and channels • Apply econometric and causal inference techniques — including difference-in-differences, synthetic control, and Bayesian structural time series — to measure the true incremental effect of marketing activities on bookings and revenue • Build and manage a structured test-and-learn programme across paid channels, identifying measurement gaps and prioritising experiments by expected business value • Contribute to the development and validation of attribution models (CLV-MTA and MMM), providing reliable benchmarks that reduce reliance on platform self-reported data • Translate complex causal findings into clear, actionable recommendations for a wide range of stakeholders including marketing teams, finance, and senior management • Review experiment designs, create thorough documentation, and help shape internal standards for how Flix measures marketing effectiveness across all channels About You • Holds a Master's or PhD in Statistics, Econometrics, Applied Mathematics, Data Science, or a related quantitative field • Brings 5+ years of experience in a data science or quantitative research role, with hands-on expertise in designing and evaluating causal experiments such as geo experiments, time-series holdouts, or synthetic control studies • Demonstrate strong command of causal inference methods including difference-in-differences, synthetic control, Bayesian structural time series, or matched market testing • Proficient in Python,SQL, Power BI and experienced with statistical modelling libraries such as statsmodels, PyMC, CausalImpact, or equivalent tools • Comfortable with version control (Git), reproducible workflows, and cloud or data warehouse environments such as BigQuery or Snowflake • Proven ability to present statistical findings to non-technical audiences and contribute to strategic choices with data • Experience in marketing measurement, media mix modelling, or growth reporting is a plus — as is familiarity with Bayesian methods We recognize that everyone carries a unique set of valuable skills and experiences. If you think you could have an impact even though you don't meet 100% of the requirements, we still encourage you to apply. We want to hear from you! What We Offer • Travel perks: 12 free Flix vouchers + 12 discount vouchers for friends & family. • Work from (M)Anywhere: Depending on your role, work from another location for up to 60 days per year. • Hybrid work model: We are an office-first company, but we offer flexibility to balance work and life. • Wellbeing support: Access confidential 1:1 counselling, courses, and stress management for yourself and up to four family members. • Learning & Development: Take advantage of language classes, training courses, and expert-led sessions to grow your skills. • Mentoring Program: Connect with experienced colleagues to gain insights and accelerate your career. To view more local benefits specific to each office location, please check out this link: Locations - Flix Career Why Join Flix? At Flix, you’ll find teams that rally together to overcome challenges and spark creativity. We believe in ownership culture - giving you the freedom to take initiative, make an impact, and shape your own career path. As we continue to expand across the globe, you can make a real difference in how we work. If you’re ready to grow and lead your journey, Flix is the place for you!