basic understanding of Java and object-oriented programming concepts,, familiarity with the Spring Framework and related technologies (REST, dependency injection, autoconfiguration, Spring Data, JPA/Hibernate),, awareness of SOLID principles and clean code practices,, basic experience with unit testing (JUnit, Mockito),, knowledge of Maven, Git, SQL, and basic Linux commands,, fluent English communication skills (spoken and written),, German language skills at a minimum B1 level - you can further develop your proficiency through our free intensive German language course.