Java SE / Java EE Engineer

B3 Consulting Poland is a Polish outsourcing company with Scandinavian roots, built on logic, experience and pragmatic thinking. We work in a Scandinavian-style culture that values trust, responsibility and long-term cooperation. Our CARE philosophy guides how we work with both customers and colleagues - we focus on understanding real needs, adapting solutions wisely and taking ownership of what we deliver. At B3, you ll find more than just projects. You ll join a team of engaged, supportive people who value quality, collaboration and technical depth We re currently expanding our digital innovation center in Poland and are looking for a Java SE / Java EE Engineer to join us. Your role and responsibilities In this role, you will work on a large-scale Java system, focusing on stability, quality and long-term maintainability. You will: • Develop and maintain acomplex Java application • Enhance existing functionalities and extend the system with new business contexts • Refactor legacy code to build shared, reusable solutions • Implement new features mainly in Java SE, with occasional Java EE development • Integrate applications with databases • Take responsibility for code quality and testing (create and maintain unit tests; contribute to integration tests) What we re looking for Must-have • Commercial experience with Java SE (Java 17) in a large codebase • Experience with Java EE / J2EE (WildFly, Hibernate) • Database experience (PostgreSQL or Oracle) • Unit testing experience (JUnit and/or Selenium) • Ability to read, understand and refactor existing code • English and Polish level B2+ • Residence in Poland and eligibility to work here Nice to have • Basic knowledge of JavaScript (React) • Experience with REST / Web Services (building or consuming APIs) • Familiarity withOSGiorEclipse desktop applications What we offer • Health & sports benefitsadjusted to your needs • Freerunning and swimming trainings(Warsaw) • Internal triathlon team and joint sports competitions • Individual development paths to deepen your technical expertise • Cyclical initiatives supporting growth in other IT domains, beyond your main stack Apply today and grow with B3 Originally posted on Himalayas