Backend Engineer (m/f/d) - Recommendation - onsite in Hamburg or Berlin at ABOUT YOU SE & Co. KG

Hamburg, Germany

on-site · full-time · Visa sponsorship

Apply for this role at ABOUT YOU SE & Co. KG

Responsibilities:
- Build next-generation recommendation backend services in Node.js/TypeScript.
- Implement and maintain high-performance APIs with low latency for production traffic.
- Integrate and query large datasets via BigQuery and align with BI/data platform deliverables.
- Collaborate with engineers, data scientists and product owners to ship features and improve recommendation quality.
- Contribute to architecture, code quality, observability and performance tuning.
- Explore and adopt new technologies, especially in ML and generative AI, to improve product outcomes.

Requirements:
- 2+ years experience building scalable backend APIs (Node.js, Python or Go) and working in an agile English-speaking environment.
- Practical experience with a typed language (TypeScript) and solid SQL/NoSQL knowledge.
- Strong coding standards: write efficient, maintainable code and keep quality high.
- Good analytical and problem-solving skills; willingness to take end-to-end ownership of services.
- Nice to have: Elasticsearch/OpenSearch, dbt, MPP warehouses (BigQuery/Redshift), Datadog, cloud (AWS/GCP), orchestration (Dagster/Airflow), distributed processing, ML/LLM experience.