He currently plays for NK Aluminij, wearing the number 3 shirt. He plays primarily as a Defender. He stands at 194cm tall and weighs 87kg. His current market value is estimated at 250K €.

His most recent move was a from Tabor Sezana to NK Aluminij on 2023-07-01.

Throughout the Slovenia 1.Liga 2025-2026, Aleksandar Zeljković featured in 21 matches, averaging 0 tackles, 0 interceptions, and 0 clearances per game, while blocking 0 shots per game.