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Senior Backend Engineer - Menu Personalization

HelloFreshWarszawa, Masovian Voivodeship, Poland
On-site Full-time

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Experience Level

Senior

Qualifications

Architect & Build: Develop the core of our personalization engine by creating high-availability Golang microservices that deliver real-time recommendations. You will also design and enhance Python/FastAPI services that rank recipes through machine learning embeddings and advanced multi-objective optimization algorithms. ML Operationalization: Collaborate closely with Data Scientists to transform complex statistical solutions and machine learning models into production-ready services. System Evolution: Influence the future of our personalization platform by re-engineering legacy components into scalable solutions.

About the job

About HelloFresh and HelloTech

HelloFresh’s Warsaw office is part of HelloTech, the technology group powering digital products for more than 1,000 professionals worldwide. HelloTech builds and maintains the platforms behind HelloFresh’s meal kits, ready-to-eat meals, and specialty lines like pet food and premium meats and seafood. These platforms enable personalized food experiences for millions of customers each month.

How Technology Shapes Our Food Experience

Technology drives every aspect of HelloFresh’s subscription, direct-to-consumer model. Teams develop customer-facing apps, personalization systems, pricing tools, forecasting models, and supply chain solutions. Many initiatives also focus on reducing food waste. While each HelloFresh brand serves its own audience, all rely on shared data, platforms, and operational standards set by HelloTech.

Role Overview: Senior Backend Engineer - Menu Personalization

Senior Backend Engineers at HelloFresh in Warsaw join autonomous, cross-functional teams, each focused on a specific product area or domain. Working closely with international colleagues, engineers help design and deliver scalable, data-driven products used in multiple markets. The role involves collaborating with a modern technology stack and contributing to features that shape how customers find, order, and enjoy HelloFresh’s menu options.

About HelloFresh

At HelloFresh, we are committed to delivering exceptional meal experiences through innovative technology. Our HelloTech division is pivotal in crafting the digital infrastructure that supports our mission to provide personalized food solutions to our customers worldwide. With a diverse range of offerings and a focus on sustainability, we strive to optimize every aspect of the food delivery process.

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