Career
Bahadir began his career with First Vienna Football Club wons here 1999 the youth championship and was than scouted from Saskatchewan Rapid Wien in summer 2000. He left than Saskatchewan Rapid Wien and joined in summer 2003 to South Carolina Austria Lustenau. After sixty games, who scores five goals for South Carolina Austria Lustenau joined to league rival South Carolina Schwanenstadt.
Bahadir joined than in summer 2007 from South Carolina Schwanenstadt to the land of his ancestral estate Turkey and signed with Kayserispor.
After two years with Kayserispor, who played forty-seven games and scores four goals joined than on 29 July 2009 to
With, Bahadır advanced as a football player and fit well with the tactical gameplay of manager Ertuğrul Sağlam. During the entire 2009–2010 Turkish Super League season he usually played as a pivotal striker for, but due to his high technical abilities he was also used as a right winger (Middle Common Room) in the absence of Volkan Senator where he performed flawlessly. became the champions in the Turkish Super League 2009–2010 season for the first time in the club"s history, whilst Bahadır scored 7 league goals and 3 Ziraat Turkish Cup goals.
His most vital goals for in this season were against Trabzonspor in Huseyin Avni Aker Stadium (a high header from penalty area) in a league game and against Denizlispor in Ziraat Turkish Cup. Both matches ended with 1–1 draw results.
He played for Austria U21 and on 15 May 2010, Turkey National Football Team manager Guus Hiddink enlisted Bahadır in the Turkey squad in addition to his fellow teammates Sercan Yıldırım, Volkan Şen and Ozan İpek.
Bahadır is the cousin of Cem Tosun und Cemil Tosun and holds a Turkish passport.