If you are seeking employment in Germany, you will first need a work permit. Before you are issued with one, you must meet certain residence requirements. The jobcentre or the Agentur für Arbeit (employment agency) can help you find a job. There is also a lot of additional support available in the specific areas of career guidance, occupation-related language courses, and the search for training opportunities and jobs.

Working in Germany: The official website for quilified professionals: 
https://www.make-it-in-germany.com/en/ 

Here you will find a list of additional helpful links on the subject.