Senior Java Developer - Microservices

Ignite innovation — shape the future of enterprise systems!Warszawa-based opportunity with hybrid work model (up to 4 remote days per week).As a Senior Java Microservices Developer, you will be working for our client, a leading player in the IT industry committed to building scalable, secure, and efficient enterprise solutions. You will contribute to the development and maintenance of complex Java-based systems, driving digital transformation and supporting business agility in a dynamic environment. This role offers new challenges for career growth and impactful projects for global enterprise success.Your main responsibilities:Develop and maintain Java applications (Java 8 ) within microservices architecture, ensuring high performance and scalabilityCollaborate on system enhancements, integrating new features based on detailed business requirementsDesign and implement solutions using Spring (including older versions) and Spring Boot, adhering to best practicesWork on system integration using REST, SOAP, and message queuing systems, ensuring robust and secure communicationContribute to system migration initiatives, upgrading stacks to newer frameworks and technologiesDocument system designs with UML diagrams and other notation standards to support development and integration effortsEngage in troubleshooting, optimizing, and extending existing legacy codebases, maintaining high code qualityYou're ideal for this role if you have:At least 5 years of professional experience in Java development within enterprise environmentsStrong proficiency in Java, including working with legacy codebasesExtensive experience with Spring framework (any version) and Spring BootSolid SQL knowledge and experience with database systems like OracleHands-on experience with microservices architecture and monolithic systems on application servers like TomcatFamiliarity with distributed systems architecture and system integration (REST, SOAP, queues)Knowledge of security mechanisms such as TLS/mTLS, certificates, and encrypted connectionsWorking experience with Maven, Gradle, Git, and tools like SOAP UI, POSTMANAbility to write bash or cmd scripts for automation tasksIt is a strong plus if you have: (optional)PLSQL knowledgeFamiliarity with JSF, JSP, or C Experience with Ansible or other automation toolsInsights into system security best practicesAbility to interpret BPMN and UML standards, with problem-solving skills related to new feature developmentLanguage Required for the role:Polish (Communicative proficiency)#MAKEYourCareerBETTERInterested?

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