Lead Backend Engineer - Personalization (all genders) Hamburg or Berlin, Germany

We are looking for a Lead Backend Engineer (all genders) to join our Personalization area, where our Search, Recommendations and Sorting teams work together to create a personalized, relevant and inspiring shopping experience for millions of ABOUT YOU customers. The teams are part of our Customer & Shop Intelligence cluster.

Depending on your background and interests, you could take a leading technical role in Search, improving how customers find products; Recommendations, shaping personalized product and outfit experiences; or Sorting, building ranking systems that balance relevance, ML and business logic.

As a Lead Backend Engineer, you will take technical ownership beyond your own team, shape our architecture and engineering standards, and work closely with Engineers, Data Scientists, Analysts and Product Managers to build scalable systems with real customer and business impact.

• Take technical ownership of complex backend systems within Search, Recommendations or Sorting and drive them from concept to production
• Shape the architecture of high-throughput, low-latency services and help evolve the technical foundations of our Personalization area
• Build and operate backend systems that combine ML models, search and ranking algorithms, behavioral signals and business logic
• Drive technical decisions across team boundaries and establish standards that improve the scalability, reliability and maintainability of our systems
• Work closely with Data Scientists, Data Engineers, Analysts and Product Managers to turn data and experimentation into impactful product improvements
• Mentor and support fellow engineers, share your expertise and raise the technical bar across the teams
• Explore new technologies and approaches, bring in your own ideas and help us continuously improve how we build and operate our systems