Gaglianone began his professional career with Defensor Sporting and has played for several clubs in Uruguay and South America. He also had brief spells abroad: with
Torino F.C. in
Serie B and
Kavala in the
Super League Greece along with compatriot
Hernán Rodrigo López. In 2000, Gaglianone had a stint with Chilean club
Colo-Colo. He helped Defensor Sporting win the
2007–08 Uruguayan Primera División, defeating
C.A. Peñarol in the finals.{{cite web|publisher=La Republica|title=Defensor Sp., campeón con sólidos argumentos ==References==