Career
He plays as a striker for Serie A team Frosinone. Dionisi started his career at non-professional team Monterotondo. He also spent 1 season at Messina"s youth team
A native of Lazio, he moved to Rome which is both the capital of Lazio and Italy, for Cisco Roma of Serie C2.
In January 2007, he moved to Abruzzo for Celano. He played 15 league matches in his first professional season, including one in playoffs.
Livorno
On 2 January 2009, Federico Dionisi agreed to join Livorno after some good performances with Celano and Monterotondo. He was presented by Livorno on July 2 with other news players of Livorno, Francesco Di Bella and Cristian Raimondi.
He scored his first official goal with Livorno on 14 August against Torino in Coppa Italia.
In September 2013, he signed a one-year loan deal with Olhanense. Frosinone
On 28 July 2014 he signed permanently with Frosinone.He helped Frosinone gain promotion to Serie A for the 2015-2016 season.