[3] Later he moved to Zemun, where he spent a full decade playing in youth categories.
He noted his first senior goals in a match against Radnički Kragujevac on 21 August 2010, when he scored a twice.
He also spent the 2014–15 season playing with Turbina Vreoci in the Serbian League Belgrade.
Playing for the club, Simunović was the most standard player in squad, making 30 appearances in all competitions with 2 goals at total for the 2016–17 season.
[3] He had also been called into the under-18 level under coach Aleksandar Stanojević for the tournament at Tel Aviv.