Giordano, who competes for the CSEsercito, made his first international appearance at the 2014 Junior World Championships in Erzurum , where he achieved 49th place in the all- around competition and tenth place with the relay. At the Junior World Championships in 2015 in Osaka he finished 50th in the all-around competition and 14th place with the relay and at the Junior World Championships 2016 in Sofia the 38th place in the all- around and ninth place with the relay. He made his debut in the Short Track World Cup at the end of October 2015 in Montreal . He came in 35th place over 1000 m and 27th place over 500 m. At the 2016 World Championships in Seoul , he finished sixth in the relay. In the 2018/19 season he achieved his first top ten placement in the World Cup individual with tenth place over 1000 m in Dresden . At the 2020 European Championships in Debrecen , he won the bronze medal with the relay.
Personal bests
500 m 41.610 sec. (installed on February 8, 2019 in Turin)
1000 m 1: 24.844 min. (set up on February 2, 2019 in Dresden)
1500 m 2: 15.971 min. (installed on October 18, 2019 in Bormio)
3000 m 4: 50.595 min. (installed on January 3, 2016 in Turin)