Hello dear employer,
I am a native Portuguese from Portugal and also a professional translator. I know you are looking for Portuguese (Angolan) but that does not exist. Portuguese as Spanish and others language has some rules which need to be followed, so, in general, it is practically the same, only the language by speaking may sound a little different. Therefore, if you want my services let me know, I can provide you a final project with maximum quality :)
Best wishes,
Helder