Java EE, Maven, PostgreSQL, Swt, Git, Docker, Eclipse Rcp, Jface, Azure DevOps, Java 11, WildFly Application Server, Enterprise software architecture, JPQL CriteriaBuilder, Modularisation of applications, Clean Code and Design Patterns, Eclipse Tycho, CI/CD pipelines, Jakarta EE, Object-oriented development, Automated build and release processes, Java 17, Legacy system evolution, JPA Hibernate