Decision Scientist, Marketing Modelling Intelligence, Marketing DSA

TL;DR

Decision Scientist (Marketing Modelling Intelligence): Maintain and improve Bayesian Media Mix Models, develop ROI and payback measurement frameworks, and apply statistical and econometric models to guide data-driven investment decisions. Focus on co-creating advanced MMM, steering high-stakes investments across channels and markets, validating strategic bets through rigorous testing, and scaling decision-making with automated data products.

Hybrid (Vilnius or Kaunas offices, Lithuania): 2 days in office recommended but not enforced.

€3,433 - €4,650 gross per month

Company

Europe’s leading platform for second-hand fashion connecting millions of members across 20+ markets.

What you will do

• Advance Marketing Intelligence by co-creating Bayesian Media Mix Models and evolving global ROI/payback frameworks.
• Steer investment decisions as a strategic advisor using econometric insights and statistical modelling.
• Validate strategic bets by designing tests and analysing impact with advanced statistical methods.
• Scale decision-making by designing automated data products and self-service tools.
• Champion data excellence by overseeing KPIs and promoting analytics best practices.

Requirements

• 2–4 years in data science, analytics, or similar; marketing analytics experience beneficial.
• Strategic mindset connecting scientific findings to business solutions.
• Strong communication to influence stakeholders and present complex results.
• Proficient in Python, SQL, dbt, and BI tools like Looker or Tableau.
• Deep knowledge of statistical modelling, regression; Bayesian statistics a plus.
• Graduate degree in Data Science, Statistics, Math, Economics, Econometrics, or related.
• Excellent written and spoken English.

Nice to have

• Experience with Media Mix Modelling (MMM) or advanced attribution methods.

Culture & Benefits

• Share options programme.
• 25 working days holiday.
• Home office support including IT equipment and €540 furniture budget.
• Private health insurance, digital mental health support, EAP.
• Workation up to 90 days per year (21 outside EU).
• Team-building events, hirify.global shopping budget, dog-friendly office, gym/meals in Vilnius, lunch allowance in Kaunas.
• Annual learning budget for courses and certifications.