Career
Jamak went through the entire FK Željezničar Sarajevo academy, signing a professional contract and debuting in 2005 for the first team, alongside Edin Džeko. He debuted for the club in the game versus NK Posušje on 6.8.2005.
In January 2009 he left his first club, and, after negotiations with the Croatian side RNK Split fell through, he signed for NK Čelik Zenica.
He spent 2 years in Zenica, establishing himself as a first team player, before returning to Željezničar in January 2011, when his contract expired. Jamak remained there until late summer 2014 when he, after playing Union of European Football Associations Europa League qualifiers for Željezničar, he moved abroad, to the Croatian Prva HNL side NK Osijek, debuting for his new club in the 13.9.2014 0-1 home loss against HNK Rijeka, coming in for Ivan Baraban in the second half.
