Susilovic joined Ramsay in 1995 in Ramsay's restaurant Aubergine. Susilovic's experience in Michelin-starred restaurants broadened when he moved to the U.S. to work in restaurants such as New York's La Panetiere, Danube and Daniel's. In October 2001, he moved to the Middle East to work with Ramsay as the manager of Verre at the Hilton Dubai Creek.
Susilovic left the American Hell's Kitchen show following the seventh season due to his commitment as Restaurant Director at Gordon Ramsay's London restaurant Pétrus. However, Susilovic returned to the show for its eleventh season.