Senior Backend Engineer - Search & Discovery

• Develop the search engine behind ABOUT YOU, covering query understanding, entity resolution, and semantic vector search in Node.js/Type Script
• Blend Open Search relevance, embedding similarity, and behavioral re-ranking signals into unified search results
• Build search-index pipelines (entities, synonyms, k-NN product vectors) streaming data from Big Query into Open Search
• Integrate LLMs and embedding models (Gemini, Vertex AI) under tight latency budgets with caching and fallback layers
• Guard search relevance using golden lists, regression suites, and continuous A/B experiments
• Shape architecture alongside our Tech Lead and collaborate closely with data analysts, engineers, and product managers

Our team is growing, and we are hiring a Senior Backend Engineer - Search & Discovery (all genders) Hamburg or Berlin, Germany in Hamburg, Germany.

Take a moment to read everything above and see whether this role is right for you.