He started his career working as an assistant to Elvis Scoria at Rijeka and Slaven Belupo. Tadić replaced Davor Mladina at the helm at Hrvatski Dragovoljac in January 2022[3] and was dismissed as manager of Rijeka in August 2022 after only 4 league games.[4]
On 9 February 2024, Tadić was appointed as manager of Saudi First Division club Al-Bukiryah following the sacking of Darko Nović.[5] He was the assistant of Nović at Al-Bukiryah. On 1 April 2024, Tadić was sacked after a 3–1 defeat to Al-Najma.[6]