Born in Cosenza, Calabria, Mosciaro started his career at Castrovillari, a local team in Castrovillari, in the Province of Cosenza. He scored twice in 2002–03 Serie D. Castrovillari moved to Cosenza as A.S. Cosenza F.C. to replace the void of Cosenza Calcio 1914 SpA in 2003, which was excluded from professional football. In the same year Mosciaro left for another Serie D team Sanremese, which he scored 4 times for the Ligurian club. The club was admitted to Serie C2 at the start of 2004–05 season. Yet in the same year Mosciaro returned to Cosenza for the old Cosenza, which he was played in the derby match against Cosenza F.C.
In 2005, he returned to Liguria region for Sanremese. He was a player in Serie C2 until the club relegation in 2007. In August 2007 Mosciaro was signed by Serie C1 club Crotone. He left the Calabrian team in January 2008 for Cuoio Pelli – Cappiano Romaiano. He scored 3 goals for the Serie C2 club. In 2008 Mosciaro left for Pro Patria, where he made his debut in the third division, now renamed as Lega Pro Prima Divisione. In 2009, he returned to the fourth division for Calabrian club Catanzaro. He was the team topscorer of 17+1 goals, ahead Lucas Longoni and Antonio Montella. The club failed to win the promotion playoffs. Mosciaro also played twice for Catanzaro in 2009–10 Lega Pro Cup. In 2010, he was signed by another third division club Pisa.
Cosenza
In 2011 Mosciaro returned to Cosenza again. The football club of Cosenza folded again after 4 years of existence. The new entity Nuova Cosenza Calcio S.r.l. was admitted to 2011–12 Serie D. Mosciaro became a protagonist of the club as bomber. He scored 21 goals and 28 goals respectively in 2011–12 and 2012–13 Serie D season. The club promoted on 5 August to fill the vacancies. Mosciaro signed a new 2-year contract on 17 August 2013. In 2013–14 Lega Pro Seconda Divisione the club "promoted" again, as Lega Pro would reduced from two divisions to one, as well as 69 teams in 2013–14 season to 60 teams in 2014–15 Lega Pro. Cosenza finished as the fourth of group B. Mosciaro was the team joint-second scorer of 7 goals behind Gianluca De Angelis and ahead Jonatan Alessandro.