Giullia was born in Funchal, the capital of Madeira Island, daughter of the Brazilian striker Júlio César Gouveia Vieira[1] who played in Botafogo and clubs in South Korea and Hungary (Fehérvar FC) [2] and Adriana de Farias Buscacio.

[4] Her debut on television occurred in the year 2009, at the age of twelve, in the series A Lei e o Crime, transmitted by Rede Record.

In 2012 she made the soap opera Balacobaco, also in the Rede Record, however, from an early age she showed an artistic vocation, producing some independent short films such as "O Menino Mofado".

Her most prominent role was in the soap opera I Love Paraisópolis, broadcast by Rede Globo, in which she played the rebellious and spoiled Bruna.

Yanna Lavigne would make the character of the indigenous Jacira in the novel Novo Mundo, but as she became pregnant, Giullia took the paper.