Senior Java Backend Engineer | Kafka & Microservices

Sii Poland in Warsaw is seeking an experienced Senior Java Developer to join a team building a modern data integration and processing platform supporting logistics on a global scale. You will design scalable backend services and microservices using Java and Spring Boot, with a focus on event-driven integrations via Apache Kafka.

The role requires hands-on production Kafka experience, architecture input, and collaboration with cross-functional teams to modernize legacy apps into cloud-ready