The company where you will be working You will be a part of the Hays tech team working for an organization renowned for its innovative projects and collaborative environment, offering ample opportunities for professional growth and development. Your tasks Develop solutions using Java 18. Implement and maintain systems using Spring and Hibernate. Work with SQL and SonarQube for database management and code quality. Collaborate effectively within a team. Implement projects using Agile methodology. Actively participate in daily meetings and Agile ceremonies. Engage in planning, retrospectives, and code reviews. Maintain and support existing systems, fixing bugs and implementing continuous improvements. Monitor solution performance, suggesting and implementing optimizations. Implement unit tests. Document solutions to ensure quality and standardization. What you'll need to succeed Degree in Computer Science, Computer Engineering, or similar. 3+ years of experience developing solutions using Java (Spring, Hibernate, SQL, SonarQube). Proficiency in core Java concepts such as object-oriented programming, exception handling, and generics. Experience with Java frameworks like Spring, Hibernate, or Struts. Understanding of SQL databases, JPA, and Hibernate for managing data. Familiarity with testing tools and methodologies, such as JUnit and Mockito. Proficiency in using version control systems like Git. Experience with SonarQube static analysis. Knowledge of Kotlin, Gradle, Maven, and Angular is a plus. Understanding of DWDM technology, including wavelength, frequency, and optical networking. Commitment to continuous learning in the rapidly evolving field of telecommunications. Excellent problem-solving skills and the ability to think critically. Fluent in English (B2/+). What Hays can offer you Temporary project with the possibility of integration Hybrid regime in Oeiras Take the first step to access Hays ecosystem of clients and partners, working actively on your tomorrow. Next steps If you are interested in this opportunity, click "Send application" to send us your updated CV. If this is not quite what you are looking for, please contact us to discuss other career opportunities, always in the strictest confidence.