Career
He currently plays for Como. On 29 June 2010 Reggina Calcio announced via their website that they have re-signed Giosa. Giosa"s first words to the media where "I am really happy, I feel to be back home, the club that adopted me when I was 15.
The five-year contract demonstrates the desire on my part and the club, to resume a path together"
On 31 August 2011 he left for the third division club Lumezzane.
On 3 August 2012 he was signed by Avellino. On 2 September 2013 he left for Como in temporary deal.
On 11 July 2014 he renewed his contract with Como.