At the age of 19, she began work as a VJ for MTV Brasil in Rio Grande do Sul, as well as working as a model, doing seasons in Milan, Hong Kong and Bangkok.

In 2007, she debuted in cinema with the film Cão Sem Dono, for which she was awarded Best Actress in Brazilian festivals.

Shortly after she debuted in television on the Rede Globo show Eterna Magia as Laura Mascarenhas.

In 2014, she joined the cast of the soap opera Em Família, in which she plays Marina, a lesbian photographer who is in love with Clara Fernandes (Giovanna Antonelli).

[1] On 30 November 2013, Tainá Müller married her husband Henrique Sauer in a simple shamanic wedding ceremony in Mexico.