If you're set on Java vacancies in Jena, there aren't very many at the present moment: we count 12. Have you tried neighbouring regions? Companies are looking for both Software Design and Software Engineering professionals within this area. School yourself in topics like Java EE, Backend Development, and Spring Framework as they are commonly seen in many at the present moment available job offers. There are at the present moment disproportionally high volumes of job offers in the Marketing industry - 41% of companies operate in this sector. For Electronics, it's 16%, and for Business analysis, 8%.
Experience level aside, it's a great time to be a aspiring pros. There are at the present moment 9 vacant positions on Jobspotting for more seasoned staff, with 2 for those fresh on the scene. As it stands, startups are unrepresented in the field of Java on Jobspotting. Many other skills are in demand in this region. You should check them out on the right side of the page.