He signed a new five-year professional deal with the Vojvodina on 8 March 2012,[2] being subsequently loaned to fellow third division side Cement Beočin.

[3] He scored his first professional goal on 17 April 2013, netting his side's only in a Serbian Cup semifinal 1–1 draw against OFK Beograd (2–1 on aggregate), thus taking Vojvodina to the finals.

[4] Radoja played regularly for Voša in the 2012–13 campaign, appearing in 22 matches (16 starts, 1553 minutes of action) and helping his side to finish in the third position.

[6] Radoja made no appearances during the entire 2018–19 season, after he expressed his desire to play in the Premier League and refused a contract renewal from Celta.

[9] Radoja got his first call up to the senior Serbia side for 2018 FIFA World Cup qualifiers against Moldova and Austria in October 2016.