 Born in Marktredwitz, West Germany, Ersen started playing for 1.FC Nürnberg, his Bundesliga input consisting in 20 minutes in a 0–1 away loss against SC Freiburg in 1998–99.After that sole season he switched to Turkey, going on to represent Beşiktaş JK, Siirtspor, Göztepe AS, Denizlispor and Ankaraspor.