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

HelloFresh
Warsaw
Workplace: OnsiteFull timeFunction: Data Science & Machine LearningExperience: 5+ yearsSkills: ["Communication","Collaboration","Teamwork"]

Senior Data Scientist within the Conversions Growth Alliance leads development of ML-driven personalization and decisioning for conversion funnels. You’ll engineering feature-rich models powering high-traffic personalization, collaborate with Product and Engineering to embed ML decisions, design experiments, and monitor production performance to optimize user journeys across HelloFresh markets from Warsaw.

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HelloFresh
HelloFresh
6 months ago

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

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Source: Company careers pageValidated by: Fursa AI
Last checked: 14 hours agoStatus: Live

Job Summary

Senior Data Scientist within the Conversions Growth Alliance leads development of ML-driven personalization and decisioning for conversion funnels. You’ll engineering feature-rich models powering high-traffic personalization, collaborate with Product and Engineering to embed ML decisions, design experiments, and monitor production performance to optimize user journeys across HelloFresh markets from Warsaw.
Location: Warsaw
Workplace: Onsite
Employment Type: Full time
Job Function: Data Science & Machine Learning
Seniority: Sr. Manager level

Key Responsibilities

  • •Build and iterate on machine learning models powering personalization that run in production behind high-traffic, performance-critical conversion pages.
  • •Execute decisioning models that determine the best next step in the conversion funnel for each user.
  • •Contribute to system design by coordinating with Engineering to ensure data science solutions integrate cleanly into the overall funnel architecture.
  • •Coordinate directly with Product and Engineering to shape how ML-driven decisions are embedded into the conversion funnels, including where models decide and how failures are handled.
  • •Direct experimentation design for decisioning models, defining success metrics, guardrails, and how results are interpreted in high-noise, high-traffic environments.

Key Requirements

  • •5+ years of professional experience in data science or a related quantitative field.
  • •Strong foundation in machine learning concepts relevant to personalization and marketing communications.
  • •Hands-on experience with regression, classification, clustering, recommendation systems, and experimentation.
  • •Practical experience designing and analyzing A/B tests and controlled experiments.
  • •Experience working with customer behavior data and segmentation.
Experience:5+ yearsData sciencePersonalizationMarketing
Skills:CommunicationCollaborationTeamwork
Languages:English
Tech Stack:Machine learningA/B testingProduction systemsData modeling

Company Brief

HelloFresh
HelloFresh is a meal-kit and food subscription company that delivers fresh ingredients and recipes to consumers, offering convenient home-cooked meals through weekly subscription boxes across multiple international markets.
Industry: FoodTech
Company Size: Enterprise (1,001+ employees)
Revenue: USD 1B+
Growth: Public Company
Valuation: Public Company (Market Cap in USD)
Funding: IPO / Publicly Listed
Headquarters: Berlin, Germany
Founded: 2011
Glassdoor
Glassdoor: 3.6
WebsiteLinkedIn