Born in Novi Pazar,[2] Zimonjić came through the same named club academy.[4][5] Passing all youth categories with the club, he joined the first team at the beginning of 2018 and spent the whole winter break off–season with the senior squad. He made his debut for the club under coach Stevan Mojsilović in 16th fixture match of the 2017–18 Serbian First League campaign against Metalac Gornji Milanovac, played on 9 March 2018.[6]