Senior Data Product Engineer, Marketing Customer Profile (all genders)

Work with HelloFresh in Warsaw and its HelloTech organisation, a global technology backbone with more than 1000 people building digital products for food delivery services including meal kits, ready-to-eat meals, pet food, and premium meat & seafood. The company uses a subscription-based, direct-to-consumer model powered by technology across customer-facing apps, personalization logic, supply chain optimization, and food waste reduction initiatives. HelloTech operates in autonomous, cross-functional alliances, each owning a product or domain end to end, with international teams and a modern tech stack.

• Hands-on experience working with AI tooling and AI coding agents such as Claude Code, Cursor, Copilot
• Strong background in data engineering with emphasis on writing clean, maintainable Python code
• Proficiency with cloud platforms and data technologies including PySpark and Kubernetes; streaming technologies are a plus
• Skilled in designing scalable data models and working with relational databases like PostgreSQL and object stores like AWS S3
• Basic understanding of Backend Development
• Proven experience building and optimizing efficient, reliable data pipelines
• Commitment to data quality, monitoring, and maintaining high testing standards
• Comfortable working in agile environments with fast iterations and continuous delivery
• Product sense and ability to support opinions with data and user evidence
• Bias to ship and take full ownership of projects

• Design and scale the foundational data layer to support personalization and segmentation
• Integrate diverse data sources into a unified customer view
• Optimize Databricks-based infrastructure for AI/ML modeling and real-time marketing activations
• Work on end-to-end development including architecture, design, development, deployment, and operation of data pipelines
• Apply DevOps practices and collaborate using pair programming and other methodologies
• Contribute in autonomous, cross-functional agile teams alongside Product Owners, Back-end Engineers, Front-end Engineers, Product Analysts, and Business Intelligence teams
• Act as a technical expert on HelloFresh’s core product and architecture, providing support to colleagues
• Operate and monitor systems in production, continuously improving them