Senior Java Microservices Developer – Cloud Integration

Senior Java Microservices Developer – Cloud Integration Warszawa, Wroclaw Hybrid CLI scripting Git Gradle Java Linux Maven Oracle REST SOAP Spring Spring Boot Tomcat UML Polish Senior Banking Developer Ignite innovation — shape the future of enterprise systems! Warszawa/Wroclaw – hybrid work model (up to 3 days remote per week) As a Senior Java Microservices Developer – Cloud Integration, 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. Your main responsibilities: Develop and maintain Java applications (Java 8+) within microservices architecture, ensuring high performance and scalability Collaborate on system enhancements, integrating new features based on detailed business requirements Design and implement solutions using Spring (including older versions) and Spring Boot, adhering to best practices Work on system integration using REST, SOAP, and message queuing systems, ensuring robust and secure communication Contribute to system migration initiatives, upgrading stacks to newer frameworks and technologies Document system designs with UML diagrams and other notation standards, supporting further development and integration efforts Engage in troubleshooting, optimizing, and extending existing legacy codebases, maintaining code quality You're ideal for this role if you have: At least 5 years of professional experience in Java development in enterprise environments Strong proficiency in Java, including working with legacy codebases Extensive experience with Spring framework (any version) and Spring Boot Solid SQL knowledge and experience with database systems like Oracle Hands-on experience with microservices architecture and monolithic systems on application servers like Tomcat Familiarity with distributed systems architecture and system integration (REST, SOAP, queues) Knowledge of security mechanisms such as TLS/mTLS, certificates, and encrypted connections Working experience with Maven, Gradle, Git, and tools like SOAP UI, POSTMAN Ability to write bash or cmd scripts for automation tasks It is a strong plus if you have: PLSQL knowledge Familiarity with JSF, JSP, or C++ Experience with Ansible or other automation tools Insights into system security best practices Ability to interpret BPMN and UML standards, with problem-solving skills related to new feature development Language Required for the role: Polish (Communicative proficiency) Eligibility for the role: Not Required – we accept candidates globally for this role if eligibility is not needed