Back End Developer

Senior Backend Engineer – Java & Distributed Systems

Location: Poland – [Fully Remote]

Contract: [B2B / employment contract]

RE Partners is hiring a Senior Java Software Engineer for a long-term technology programme with a leading global bank. The role focuses on high-throughput Java services, concurrency, messaging and production performance. Banking experience is not required; relevant experience may come from any complex, data-intensive environment.

The role

• Develop scalable Java backend services
• Solve concurrency and multithreading challenges
• Build event-driven solutions using Kafka or similar technologies
• Improve application performance, resilience and throughput
• Troubleshoot JVM and production issues
• Contribute to technical design decisions

What we’re looking for

• Strong commercial Java experience
• Experience with distributed or high-throughput systems
• Good knowledge of concurrency, multithreading and JVM fundamentals
• Experience with Kafka, RabbitMQ, Solace, IBM MQ or similar
• Knowledge of Docker and Kubernetes-based environments
• Strong debugging and problem-solving skills
• Professional working English
• Experience with Oracle, MongoDB, OpenShift, Java profiling or financial systems would be beneficial but is not essential.

Right to work

Applicants must already have the legal right to work in Poland.

Visa sponsorship and relocation assistance are not available for this position.

Apply directly to learn more about the programme, technical environment, and engineering team.

Click here to Apply NOW