Middle Java Developer
Description
This role exists to design, build, and maintain streaming data solutions based on Apache Kafka and related technologies, ensuring reliable data processing, integration, and testing of streaming applications.
Responsibilities
- Build and maintain data pipelines using Apache Kafka, including topics, partitions, and consumer group tuning.
- Implement and manage Kafka Connect source and sink connectors for integrations.
- Design and develop stateful streaming applications using Kafka Streams or Flink with Java (and Scala where applicable).
- Ensure data consistency and schema evolution using Schema Registry (Avro).
- Write and maintain unit and integration tests for streaming topologies.
Requirements
- Commercial experience in software engineering with strong proficiency in Java (Scala is a plus). (required)
- Understanding of Apache Kafka architecture and internals. (required)
- Experience working with Apache Flink. (required)
- Experience with Schema Registry and schema evolution strategies. (required)
- Knowledge of serialization formats such as Avro and JSON. (required)
- Experience using SQL for processing large datasets. (required)
- Experience running Kafka and/or Flink on Kubernetes. (nice-to-have)
- Familiarity with monitoring tools such as Prometheus and Grafana for streaming metrics. (nice-to-have)
- Understanding of stream processing semantics. (nice-to-have)
- Experience with CI/CD pipelines for streaming applications. (nice-to-have)
Benefits
- Cafeteria - annual budget you allocate to: Sports • Medical • Mental health • Home office • Languages.
- Paid maternity/paternity leave + monthly childcare allowance.
- 20+ vacation days, unlimited sick leave, emergency time off.
- Remote-first + tech support + coworking compensation.
- Team events (online/offline/offsite).
- Learning culture with internal courses + growth programs.
About GR8 Tech
GR8 Tech is a business-to-business iGaming software provider headquartered in Limassol, Cyprus, supplying sportsbook and casino platform technology to operators. It is the rebranded B2B arm of Parimatch Tech, spun out from the consumer Parimatch brand in 2023. The company's modular platform supports millions of active users across more than 40 countries, maintained by a team of over 900 specialists. GR8 Tech focuses on high-performance, scalable sportsbook and gaming infrastructure.
