At Arsenal he at first took up the role as a coach of the  club's Academy. During the following season he went on to coach the club's senior side. Turmuş eventually returned to Turkey where he coached at sides Malatyaspor and  Balikesirspor.
Turmuş started coaching at Arsenal with the youth team. In the next season, he moved up to coach the senior side. Eventually, Turmuş returned to Turkey to coach at Malatyaspor and Balikesirspor.