I'm interested in completing an LLM in Germany(Heidelberg,HU), in the field of criminal law (international and german), what do you think are the job opportunities with this LLM, considering that I didn't obtain my law degree in Germany...

I think you do not mean Heidelburg but the Humbolt/Western Cape LLM. Unless there are a lot of cases in your home country involving criminal acts in Germany, then I don't see what job this would help you to do. Obviously you could not practice in Germany. The course seems to be aimed at building capacity in the South African legal profession.

[Edited by Duncan on Nov 08, 2017]