Sebastiano has worked for some of the most renowned wineries in the world such as Lafite Rothschild, before he was asked by the Countess Cinzano of Montalcino to join Argiano where he spent another 12 years working alongside legendary winemaker Giacomo Tachis. He joined Tenuta San Guido in 2002, and was appointed the Technical Director and oversees the two cellars for San Guido: Sassicaia and Guidalberto and Le Difese.