Fermani started working as a youth coach at River Plate in 2006, before leaving in 2010 due to the club's change of presidency.
He returned in late 2013, and was appointed manager of their reserve squad in December 2019, along with Juan José Borrelli.
[5] Shortly after leaving River, Fermani joined Racing Montevideo in Uruguay as a youth coordinator.
[6] On 16 November 2022, he replaced Damián Santín at the helm of the first team in the Primera División.
[7] On 14 September 2023, Fermani returned to Racing's youth sides,[8] being replaced by Eduardo Espinel.