He also played both 2002–03 UEFA Champions League qualifying round matches against Newcastle United.
[1] After seven years of playing for Željezničar, he left the club in 2005 and signed a contract with Jedinstvo Bihać.
Mulaosmanović also played in North Macedonia and Albania for Renova and Elbasani, before returning to Bosnia and Herzegovina and joining Bratstvo Gračanica in 2007, where he retired in 2011 at the age of 34.
He was assistant manager during the managing tenures of Admir Adžem, Slobodan Krčmarević, Milomir Odović, Amar Osim, Blaž Slišković, Tomislav Ivković and Edis Mulalić.
On 31 January 2019, Mulaosmanović was named the new interim head coach of the Bosnia and Herzegovina national U-17 football team.