The 30-year-old will resume with his duties on October 15 at the popular La Manga Club in Spain.
"I have just accepted the position of Sporting Director at the club. It is an awesome place so I'm looking forward to that," he tells KickOff.com.
Harpur says he is "sad" to walk away from the playing fields. "I have quit… it is over and it is sad but it is time to look to the future and this is a great opportunity," he admits.
"All the top clubs in Europe as well as national teams train at the La Manga Club during the off season or when they get a week off during the season to get some good weather training and I'm hoping to bring Bafana Bafana here in future," he adds.