Born in Kragujevac to Croatian Serb parents who fled Knin, Croatia during Operation Storm,[3] Romanić is a product of Red Star Belgrade youth system.
[5] For the rest of season, Romanić was loaned to the Serbian First League side OFK Beograd, but also stayed playing with youth team on dual registration.
[6] Romanić scored his first senior goal on 9 April 2017 in the 21 fixture match of 2016–17 between Budućnost Dobanovci and OFK Beograd.
[7] Although he was Italian side Carpi in summer 2017,[8] Romanić moved at one-year loan deal to Borac Čačak.
[13] He his debut for Serbia national under-19 football team on 1 September 2016 in a match against the United States, played on the memorial tournament "Stevan Vilotić - Ćele".