Mihailović started his career in Mornar Bar before moving to Montenegrin basketball giants Budućnost Podgorica in 2010 where he stayed until 2014.
[1] On 14 November 2014, he signed with the German club WALTER Tigers Tübingen.
[3] On 15 December 2016, he left s.Oliver and signed with EWE Baskets Oldenburg for the rest of the season.
[4] On 13 October 2017, Mihailović signed a short-term deal with his former club Oostende.
[10] Mihailović has been a member of Montenegrin national basketball team.