Senior Data Scientist – Marketing

About the role

Preply is scaling its data team to drive decision‑making across the business. As a Senior Data Scientist focused on Marketing, you will work closely with performance‑marketing, product and data‑strategy teams to build data‑driven solutions that optimise campaigns, budgets and ROI.

Key responsibilities

• Collaborate with performance‑marketing teams to develop data solutions for campaign optimisation and budget allocation.
• Roll out Marketing Mix Modeling (MMM) across multiple countries and build an automated Bayesian MMM platform.
• Design and analyse incrementality tests using causal inference to quantify incremental ROI.
• Create a unified system linking MMM outputs with incrementality results and shape the testing roadmap.
• Develop a Creative Analytics framework, including metrics such as creative fatigue.
• Partner with the Applied AI team to deploy models, evaluate impact and interpret feature importance.

Required profile

• Extensive experience as a Data Scientist in B2C performance‑marketing environments.
• Strong problem‑solving mindset with ability to simplify complex analytical challenges.
• Proficiency in designing experiments and A/B testing.
• Excellent written and verbal communication skills in English.

Required skills

• SQL
• Python
• Databricks
• Snowflake
• Looker
• Apache Spark
• dbt
• Airflow

What we offer

• Open, collaborative and diverse culture with a generous monthly lesson allowance.
• Competitive financial package including equity, health insurance and relocation support.
• Access to mental‑health platforms and Gympass wellness benefits.
• Opportunity to impact millions of learners and tutors worldwide.