Gamboa started his managerial career coaching
Newell's Old Boys. In 2009 replaced
Ricardo Zielinski in
Chacarita Juniors signing until June 2010 and assisted
Ricardo Lunari. However, they were sacked before the end of their contract. In May 2010 he signed for
CD Veracruz of the
Mexican second division. In September 2010 Gamboa agreed to replace
Antonio Mohamed as head coach of
Colón. The board of directors of Colon sacked him soon after the club lost 2–0 against
Olimpo in a league match on 9 April 2011. On 18 April 2018, Gamboa was appointed as the manager of
Club Agropecuario Argentino. He left the club one month later. On 6 November 2018, he was then appointed as the manager of Paraguayan club
Club Nacional. After the elimination in the first phase of the Copa Libertadores of 2019, he was fired on 31 January 2019. ==Honours==