Senior Data Engineer: Real-Time Streaming Pipelines

DOU Polska is seeking a senior Java backend engineer to build a high-throughput data platform that processes millions of events per minute for an international client base. You will develop production-grade Java services, streaming pipelines with Kafka and Flink, and scalable data models.

You will collaborate with architecture, product and DevOps, optimise queries on PostgreSQL/ClickHouse/Redis, and ensure observability, security and cost efficiency.