hi thomas I am a south african graduate living in Italy. In order to work in South Africa you should contact the University of the Witwatersrand & speak to Professor Cecilia Eales. She will be able to give you all the information you are looking for. As far as I know international students are required to write exams, but check with Prof Eales, cause they may have changed the rules. Good luck & let me know if you need any other information.