Java Developer

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
• Ensure data consistency and schema evolution using Schema Registry (Avro)
• Write and maintain unit and integration tests for streaming topologies

Requirements

• 3+ years of experience in back end development
• Strong proficiency in Java
• Understanding of Apache Kafka architecture and internals
• Experience working with Apache Flink
• Experience with Schema Registry and schema evolution strategies
• Knowledge of serialization formats such as Avro and JSON
• Experience using SQL for processing large datasets
• Upper-intermediate or higher level of English

Preferred Qualifications

• Experience running Kafka and/or Flink on Kubernetes
• Familiarity with monitoring tools such as Prometheus and Grafana
• Understanding of stream processing semantics
• Experience with CI/CD pipelines for streaming applications

Benefits

• Benefits Cafeteria for sports, medical, mental health, home office, and languages
• Paid maternity/paternity leave and monthly childcare allowance
• 20+ vacation days, unlimited sick leave, and emergency time off
• Remote-first environment with tech support and coworking compensation
• Team events and a strong learning culture

About the Company

GR8_TECH builds B2B iGaming platforms for operators, delivering high-impact tech designed to scale. With over 1000 employees, they power millions of active players globally.