Özen started his professional career in 2008 at the then Division 4 club Stafsinge IF based in Falkenberg. For the 2009 season he moved to Varbergs BoIS where he played for three seasons, two seasons in Division 2 and one season in Division 1. Özen transferred to Allsvenskan club Mjällby AIF for the 2012 season. After having only played five matches for the club in his debut season, Özen made a breakthrough for the 2013 season where he played a majority of the club's matches.