Senior Java Developer – Distributed Systems and Microservices

Our client is an industry leader in terminal management systems, dedicated to creating robust solutions for managing millions of payment terminals worldwide, driving digital transformation in the payments industry.

• 4+ years of experience in Java development, with senior-level expertise
• Strong knowledge of Java 8+ and object-oriented programming principles
• Proven experience with Spring, Spring Boot, Hibernate/JPA, and JEE frameworks
• Practical knowledge of message queue systems, particularly RabbitMQ
• Familiarity with development tools: Maven, Git, Gitlab, CI/CD pipelines, Jenkins, Nexus, Jira
• Working experience with relational databases, especially Oracle
• Practical knowledge of RESTful API design
• Experience with distributed systems and system integration
• Knowledge of application servers, including JBoss/WildFly
• Ability to review analytical documentation and create technical specifications
• Excellent command of Polish and English (B2 level)
• Ability to work from the Warsaw office 4 days per week + 1 day remote

Nice to have:

• Experience with scanning tools such as Fortify or Sonatype

• Design and implement IT solutions based on analytical and technical documentation
• Review and validate analytical documentation to ensure system integrity
• Create detailed technical documentation for development and maintenance
• Perform technical upgrades and work with legacy codebases
• Conduct regular vulnerability scans to ensure system security
• Collaborate on distributed systems development utilizing Spring, Hibernate, and RabbitMQ
• Support system integration with internal and external APIs and services
• Optimize and maintain application servers such as JBoss/WildFly
• Contribute to the migration and modernization of existing systems

Only candidates with an existing legal right to work in the European Union will be considered for this role.