Career
During his football career, Marin Barbu played, among others, for Steaua București and Football Club Brașov. He left his position as head coach of Dunărea Giurgiu on January 12, 2010. In April 2013, he was the head coach of Astra Giurgiu for only one game, being dismissed after a week.
From April 2014 till August 2014 he was the head coach of Ceahlăul Piatra Neamț.