 The most memorable moment of his career came when he scored in the 90+3rd minute for Željezničar on 5 June 1998 in a Bosnian championship play-off game during season 1997–98 against crosstown rivals Sarajevo.That was the only goal of the game which brought his club its first championship title in independent Bosnia and Herzegovina.Zubanović also played for the Bosnia and Herzegovina U21 national team between 1996 and 1999, making 15 appearances and scoring 4 goals in the process.