Josipović started playing football in his hometown at NK Šibenik. Initially a striker, he moved to the position of goalkeeper on coach's recommendation, where he soon showed his talent.Junak Kijeva: Bio sam napadač i na gol sam stao na preporuku at 24sata.hr At the age of 13 he was already training with the first team. However, in the summer of 2015, after becoming an under-15 national team player, he moved to GNK Dinamo Zagreb, at the age of 14.Junak Kijeva: Bio sam napadač i na gol sam stao na preporuku at 24sata.hrStigao je u Dinamo iz Šibenika, prošlu sezonu proveo u Bravu, a sada odlazi u BiH at Germanijak
