Streaming Platform Engineer (Kafka/ Flink)

In Nimbus Data Systems we work with top international IT companies in order to boost their potential in delivering outstanding, cutting-edge technologies that shape the world of the future. We are seeking an experienced Streaming Platform Engineer to join large-scale enterprise Kafka / Confluent platform powering 478+ AsyncAPIs and 750+ production topics in a modern, event-driven ecosystem. You will work in a shared responsibility model, contributing to both central platform capabilities and domain-driven topic ownership alongside Producers and Consumers. The main goal is to enhance the platform by introducing: content-based filtering, payload projection and topic joins (extending beyond current header-only filtering). Project information: Type of project: IT services Office location: Warsaw, Poland Work mode: Remote from Poland Budget: 150-170 PLN net/ h- b2b Project length: Tiill the end of 2026, possible to extend it Only candidates with citizenship in the European Union and residence in Poland Start date: ASAP (depending on candidate’s availability) Project scope: Design and implement stream processing solutions using Apache Flink and Flink SQL Develop and maintain filtering, projection, and join logic on streaming data Build and operate workloads using the Flink Kubernetes Operator Implement and maintain Kafka-based integrations, including producers, consumers, and Kafka Connect pipelines Design and evolve Avro schemas, ensuring compliance with schema evolution rules Integrate solutions with Confluent Schema Registry Develop and support Flink SQL rule framework and validation tooling Contribute to XML-to-Avro transformation mechanisms (including Kafka Connect SMTs) Collaborate with platform and domain teams in a shared ownership model Apply AI-assisted (agentic engineering) approaches across design, implementation, and delivery lifecycle Troubleshoot and optimize deployments in Kubernetes environments Support CI/CD and GitOps practices for rule deployment and configuration management Competence demands: 6-8 years of experience Apache Flink (Flink SQL, stateful stream processing) Apache Kafka / Confluent (producers, consumers, Kafka Connect) Avro & Schema Registry (schema evolution, design) Kubernetes (deployments, troubleshooting) Flink Kubernetes Operator Strong understanding of event-driven architectures Very good English skills Nice to have: AsyncAPI (v3) Kafka Connect custom SMT development (Java) XML / legacy data transformations GitOps / CI-CD (YAML, PR-based workflows) We offer: Remote working model Dynamic and innovation-driven engineering environment Full-time job agreement based on b2b Private medical care with dental care (covering 70% of costs) Multisport card (also for an accompanying person) Life insurance