Career
On 17 May 2009, only days after the triumph in the Coppa Italia Primavera, Signorini made his Serie A debut in a home game against Chievo Verona, replacing Boško Janković during injury time. On August 2009 he was sent out on loan to Lega Pro Prima Divisione side Alessandria. He successively spent the 2010-2011 again on loan in the Italian third tier, this time as part of the Benevento roster.
On 14 July 2014, he left Benevento after four seasons to join Serie B club Cittadella.