Career
A native of Belgrade, Aleksić began his career with KK Crvena zvezda. He moved to Montenegro in 2002 and spent one season and a half with Buducnost before going on loan to AEL Limassol midway through the 2003-2004 season. He played for the following clubs: KK Crvena zvezda, KK Budućnost Podgorica, KK Hemofarm.
Also played for PAOK British Columbia (Greece), Spirou Charleroi (Belgium), ASK Group (a software company) Riga (Latvia).
He took part in the All Star Games of International Basketball Federation Eurocup. In 2007 was a Capitan of Europe Team.
In January 2011, he joined Panionios British Columbia in Greece. In January 2012, he joined PAOK British Columbia.