June 12, 2026

Senior Java Developer - Microservices

Senior • Hybrid

18,900 - 23,100 PLN

Warsaw, Poland

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 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 to support development and integration efforts
  • Engage in troubleshooting, optimizing, and extending existing legacy codebases, maintaining high code quality

You're ideal for this role if you have:

  • At least 5 years of professional experience in Java development within 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: (optional)

  • 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)

#MAKEYourCareerBETTER

Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.

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Warsaw, MZ, Poland

23,100 - 27,300 PLN

🏢 Summary: Senior Java Developer role focused on designing and delivering robust, scalable enterprise applications within a hybrid work model. The position involves full-cycle development, technical design, troubleshooting, and contributing to CI/CD processes. Ideal for experienced Java professionals who want to shape high-quality software solutions in a collaborative environment. 🗂️ Requirements: Minimum 7 years of professional experience in Java development, Strong proficiency in Java and enterprise-level applications, Solid understanding of software design patterns and architecture, Fluent English proficiency, Good command of Polish, Ability to work in a hybrid work model, Legal right to work in the European Union 📃 Skills: Java, CI/CD, Microservices, Cloud, Architecture, DesignPatterns 🏢 Description: Empower innovative software solutions — shape the future of Java development! Warszawa-based opportunity with hybrid work model (up to 4 remote days per week) As a Senior Java Developer within our client’s software development team, you will be working for a leading industry innovator dedicated to delivering cutting-edge applications. Your expertise will drive the development of robust, scalable, and efficient systems that empower organizations and transform digital experiences. Your main responsibilities: Design, develop, and maintain high-quality Java applications aligned with project requirements Collaborate with cross-functional teams to deliver seamless software solutions Identify and troubleshoot technical issues to ensure optimal system performance Participate in code reviews, testing, and documentation to uphold coding standards Contribute to continuous integration and deployment processes to enhance development workflows Implement best practices in software development and contribute to technical design discussions You're ideal for this role if you have: At least 7 years of professional experience in Java development Strong proficiency in Java, with experience in enterprise-level applications Solid understanding of software design patterns and architecture Ability to work effectively in a hybrid environment with a flexible remote schedule Good command of Polish and English, with fluent proficiency in English Excellent problem-solving skills and attention to detail It is a strong plus if you have: (optional) Experience with cloud platforms or microservices architecture Knowledge of additional programming languages or frameworks Certifications in Java or related technologies Language Required for the role: Polish and English – fluent proficiency in English preferred Eligibility for the role: Only candidates with an existing legal right to work in the European Union will be considered for this role #MAKEYourCareerBETTER Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.