Here is the link to all German universities where you can get the details of German universities and jobs at university. However, in one day listing all universities is not possible so I will update slowly. In addition, the German language is not necessary for PostDoc, PhD and Masters but it is advantageous and can produce more jobs even will help in extension but don't make any hope in companies without language. They would not prefer you. Moreover, research station will also not prefer if you don't have C1 level language.
If you want to stay more or looking for permanent residence then you must have B1 level German language skill. Try to get certificate at least B1 level in your country than here (much difficult heređ).*Click the blue link below the university pic.
1) University of Hohenheim
One of the oldest agriculture universities in the world almost more than 200 years. The University of Hohenheim is among the 14 percent of the world's best universities in the current world University Ranking. The British magazine "Times Higher Education" published this annual ranking on 12 October 2022. Some of the glimpse of University of Hohenheim: