|Date of birth||2 November 1981|
|Place of birth||Hanover, West Germany|
|Height||1.80 m (5 ft 11 in)|
|SC Wiedenbrück 2000|
|LSV Alexandria Hannover|
|–1997||SV Linden 07|
|2000–2004||Hannover 96 II||91||(43)|
|2005–2007||1. FC Magdeburg||38||(20)|
|2007–2009||SpVgg Greuther Fürth||48||(9)|
|2014–||SC Wiedenbrück 2000||23||(4)|
|* Senior club appearances and goals counted for the domestic league only and correct as of 3 July 2015.
Kotuljac spent his youth with various clubs in his hometown of Hannover before moving to Hannover 96 in 1997. In 2000, he joined Hannover 96's reserve team and went on to score more than 40 goals in the next four seasons. As Hannover's reserves are a U23 team, Kotuljac left the club in 2004, joining Oberliga Nord side Eintracht Nordhorn. At the end of the 2004–05 season he left for then NOFV-Oberliga Süd side 1. FC Magdeburg.
Here Kotuljac scored 11 goals in 21 matches in his first season, and he won promotion to Regionalliga Nord with his new club. However, in a match against ZFC Meuselwitz Kotuljac was injured severely and was ruled out for the rest of the year. Only in February 2007 could he come back to play, and he scored nine goals in 17 matches in the Regionalliga Nord. At the end of the season 1. FC Magdeburg narrowly missed out on promotion to 2nd Bundesliga, and Kotuljac was allowed to leave on a free transfer for SpVgg Greuther Fürth. In the 2007–08 season he established himself in the first team, scoring six goals in 29 matches. On 23 June 2009, he signed for VfL Osnabrück.
- "Kotuljac, Aleksandar" (in German). kicker.de. Retrieved 6 January 2012.