Depends on the job and region you will live. If you speak English, you can work it out in big cities with little to know knowledge about German language. But ov

Depends on the job and region you will live. If you speak English, you can work it out in big cities with little to know knowledge about German language. But overall, needing to learn the local language is generally true for every country which does not speak your native language. So It's not like Germany is a big exception here.