Decision Scientist (Marketing)

TL;DR

Decision Scientist (Marketing): Driving high-stakes media investment decisions through Bayesian Media Mix Modelling, uplift testing, and attribution modelling with an accent on causal relationships and ROI frameworks. Focus on designing rigorous tests, deploying automated data products, and optimizing marketing intelligence across multiple markets.

Location: Hybrid in Kaunas or Vilnius, Lithuania (2 days in office recommended)

Salary: €4,608 — €6,233 EUR gross monthly

Company

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

What you will do

• Lead the development of attribution modelling, Bayesian Media Mix Models (MMM), and member engagement marketing measurement.
• Provide data-driven insights for high-stakes investment decisions across various channels and markets.
• Design and execute rigorous tests to validate strategic bets and identify growth opportunities.
• Build and deploy automated data products and self-service tools to scale decision-making.
• Oversee key performance indicators and promote analytics best practices within the marketing domain.

Requirements

• 4-8 years of experience in data science, analytics, or a similar quantitative field.
• Proficiency in Python, SQL, dbt, and BI tools such as Looker or Tableau.
• Deep knowledge of statistical modelling, regression analysis, and causal inference.
• Graduate degree in Data Science, Statistics, Math, Economics, Econometrics, or a related field.
• Excellent written and spoken English.
• Must be based in or able to work from Kaunas or Vilnius, Lithuania.

Nice to have

• Previous experience with Media Mix Modelling (MMM) and advanced attribution methods.
• Background in CRM analytics and Bayesian statistics.

Culture & Benefits

• Share options programme and annual individual learning budget.
• Private health insurance and digital mental/emotional health support.
• Home office support including IT equipment and a €540 budget for furniture.
• Flexible hybrid work model and 25 working days of holiday.
• Workation policy allowing up to 90 days per year (21 days outside the EU).
• Personal monthly budget for shopping on hirify.global.