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 began his tenure as a coach for Arsenal by working with the youth academy. The following year, he took charge of the club's senior squad. Later, Turmuş relocated to Turkey, where he coached teams such as Malatyaspor and Balikesirspor.