[7] In 1996, alongside fellow actors Alberto San Juan, Guillermo Toledo, and Ernesto Alterio, Poza founded the theatre group 'Ración de Oreja', which later became Animalario [es].

In her first fixed television role in 2001, she played Nerea in Policías, en el corazón de la calle.

[6] Later, she appeared in Hospital Central, and, in more permanent roles, in Un lugar en el mundo [es] (2003) and Maneras de sobrevivir (2005).

She also acted in Football Days, by David Serrano de la Peña [es] and The Weakness of the Bolshevik, by Manuel Martín Cuenca.

In 2013, the film Todas las mujeres [es] premiered, directed by Mariano Barroso, for which she received her third Goya nomination, for best supporting actress.