Senior Data Scientist, Growth

Role Overview

The Growth Alliance powers HelloFresh’s marketing engine, from media investment and in-channel optimization, to the conversion funnel, to how and when we communicate with customers. As a Senior Data Scientist, you will design and ship statistical and machine learning models that turn data from experiments, campaigns, and customer behavior into decisions that directly move the business.

What You Will Do

Design, build, and take ownership of statistical and machine learning models, from data collection through to production, closely aligning the approach with non-technical stakeholders. Collaborate within cross-functional teams (engineering, product, marketing) to translate business objectives into concrete, data-driven strategies.

Why It Might Be a Fit

To succeed in this role, you should be a curious, pragmatic problem solver who relentlessly prioritizes based on impact, is comfortable with statistical uncertainty, and can translate a fuzzy business question into a concrete, testable model.

Requirements

• Proven track record of scientific work through a Bachelor’s, Master’s, or PhD in statistics, physics, economics, mathematics, data science, or a related quantitative field.
• 3+ years of professional experience as a (senior) data scientist or in a related quantitative role, ideally in e-commerce, marketing, or a comparably high-traffic, consumer-facing environment.
• Strong marketing and/or growth domain knowledge, with experience applying statistical models such as regressors and classifiers, and interpreting experiment results under real-world uncertainty.
• Fluency in Python and its scientific stack (NumPy, Pandas, Scikit-learn, Matplotlib); comfortable retrieving and analyzing data with SQL.
• Familiarity with software engineering practices and tools (Git, Docker, AWS or similar cloud environments).
• Comfortable using recent Gen AI tools (e.g. Claude Code) to design and build solutions in a structured and pragmatic manner.
• A critical thinker and creative problem solver who is comfortable proposing and prioritizing multiple solutions based on effort and likely impact.
• A collaborative team player with exceptional communication skills, able to work with stakeholders from different backgrounds in an international environment.

Benefits

• Global collaboration at scale
• Technology with real-world impact
• Technical/Product/Design leadership
• End-to-end development/delivery

Tagged as: Data Analysis, Python, SQL