Senior Data Engineer

Responsibilities

• Design, build, and maintain high-throughput reverse-ETL replication pipelines to bridge core platforms and reporting tools
• Lead the migration of custom data processing pipelines into a modern, scalable data architecture
• Evaluate and implement optimal storage solutions, deciding between relational engines (MySQL), search indexes (OpenSearch), cloud warehouses (BigQuery), or columnar storage (ClickHouse)
• Collaborate with Backend and Analytics Engineers to design high-performance, scalable data structures and logical modeling boundaries
• Drive operational excellence through proactive monitoring, system reliability, and application stability
• Set engineering standards and balance technical innovation with long-term maintainability

Requirements

• 5+ years of experience in Data Platform Engineering
• 7+ years of total experience in Software Engineering
• Proficiency in Python for writing custom data loading logic and validation drivers
• Extensive experience with batch-workflow orchestration and automated, event-driven architectures
• Advanced understanding of relational and analytical database engines (transactional vs. columnar/document-based)
• Experience with observability and telemetry tools (e.g., Datadog) for tracking system resources and pipeline health
• Strong communication skills to convey complex architectural concepts and performance trade-offs

Preferred Qualifications

• Experience with modern data orchestrators such as Dagster
• Practical knowledge of dbt for data transformation
• Domain expertise in E-commerce, Retail-Tech, or AdTech ecosystems
• Ability to read object-oriented PHP and frameworks like Laravel

About the Company

ABOUT YOU is one of Europe's fastest-growing e-commerce companies. Based in Hamburg and Berlin, we combine fashion and technology to rethink and personalize online shopping. We value flat hierarchies, direct communication, and pragmatic decision-making.