 In the first half of the 2012–13 season, Tumbasević was on loan at Zimbru Chișinău, before returning to Dacia Chișinău in early 2013.In June 2016, Tumbasević signed with Mladost Lučani.Tumbasević represented FR Yugoslavia at the 2002 UEFA European Under-17 Championship, as the team were eliminated in the quarter-finals by England, thanks to Wayne Rooney's goal.