Job Title: Client-Facing Data Scientist (Marketing & Market Mix Modelling)Location: Netherlands / Belgium / Hybrid Language Requirement: Fluent Dutch & EnglishAbout the RoleThe company is seeking a Dutch-speaking, client-facing Data Scientist to join its growing analytics team. This role focuses on delivering data-driven insights for commercial and marketing stakeholders, with a strong emphasis on marketing analytics and Market Mix Modelling (MMM).The successful candidate will act as a trusted advisor to clients, translating complex analytical outputs into clear, actionable recommendations that inform marketing strategy, budget allocation, and overall business performance.Key ResponsibilitiesDevelop, maintain, and improve Market Mix Models to measure marketing effectiveness across channelsWork directly with clients to understand business challenges and define analytical approachesTranslate model results into clear insights and recommendations for non-technical stakeholdersPresent findings to marketing teams, commercial leaders, and senior stakeholdersAnalyse marketing data including media spend, sales, pricing, promotions, and external factorsCollaborate with internal data science, engineering, and consulting teamsSupport scenario planning, forecasting, and optimisation of marketing budgetsRequired Skills & ExperienceStrong academic or professional background in data science, statistics, econometrics, or a related fieldProven experience in Market Mix Modelling or advanced marketing analyticsProficiency in Python and/or R (SQL experience is an advantage)Solid understanding of marketing channels (digital and offline)Ability to communicate complex analytical concepts clearly and confidentlyFluent Dutch, both written and spoken, with professional-level EnglishExperience in a client-facing or stakeholder-facing roleNice to HaveExperience in consulting, analytics advisory, or agency environmentsKnowledge of causal inference, time-series modelling, or Bayesian approachesExperience with data visualisation tools such as Tableau or Power BIExperience working with large and complex marketing datasetsWhat the Company OffersExposure to high-impact marketing and commercial projectsRegular interaction with senior client stakeholdersA collaborative, analytics-led working environmentCompetitive salary and benefitsFlexible and hybrid working arrangements