 Peirone has not played any first team games for San Lorenzo since 2006, he had the opportunity to sign on loan for Racing Club de Avellaneda in August 2008, but he did not sign his contract.In 2009, he signed for the Ecuadorian Club Emelec.At his arrival in Ecuador he immediately became a solution for Emelec's scoring problems and scored some goals in both the Copa Sudamericana and the Ecuadorian championship.