Senior Java Developer (Kafka)

Antal is a leader in recruitment of specialists and managers as well as HR consulting. The brand operates in 35 countries and has been active in Poland since 1996, employing over 130 professional recruitment consultants specialized in various sectors and positions.

• 10+ years of experience in software development
• Strong expertise in Java 17+ and Spring Boot
• Very strong Kafka knowledge (must-have)
• Hands-on experience with Kafka Streams
• Experience building microservices and event-driven architectures
• Strong understanding of integrations, REST APIs, and messaging systems
• Experience with relational databases (PostgreSQL, MS SQL, Oracle)
• Kubernetes and basic DevOps knowledge
• Fluent English

Nice to have:

• Confluent Kafka experience
• Confluent Kafka Developer certification

• Design, develop, and maintain scalable backend services and integrations
• Build event-driven solutions connecting multiple enterprise systems
• Work on large-scale Big Data and data-platform initiatives
• Modernize legacy applications and migrate them to modern architectures
• Define technical solutions and contribute to architectural decisions
• Collaborate with product, business, and engineering teams
• Mentor less experienced developers and promote best practices
• Support production environments and ensure solution reliability