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Senior Data Scientist, Growth Alliance (m/f/d)

Warszawa, Masovian Voivodeship, Poland💼 Full-time🗓 2026-06-05 → 2026-09-26

Core

Build and operate machine learning models for personalization and conversion optimization in high-traffic production environments to drive user acquisition and retention.

Role type

Senior IC data scientist (growth/conversions)

Builds

Automated decisioning engines and personalized user journey optimization systems

Domain

Direct-to-consumer food subscription, marketing technology, growth analytics

Deliverable

production ML models

Required skills

machine learning (regression, classification, clustering, recommendation systems), A/B testing design and analysis, customer behavior segmentation, production system integration, cross-functional collaboration

Preferred skills

experience with high-traffic performance-critical systems, experimentation in high-noise environments

Technologies

modern tech stack (specific tools not listed)

Responsibilities

Build and iterate ML models for personalization; Execute decisioning models for conversion funnels; Coordinate system design with Engineering; Shape ML decision embedding with Product; Design experiments for decisioning models; Monitor model safety and performance in production

Seniority

Senior, hands-on IC

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