Initially, she was not planning to go into acting, but in her first audition, for SMS, the television channel TV company LaSexta gave her first acting job. In SMS, she worked with other young film and television talents as Yon González, Aroa Gimeno, Mario Casas and María Castro. She will lead the Spanish-Canadian co-production Webcam directed by Antoni Sole.

Besides, her work as an actress, Amaia works as a model for photo shoots, video clips and shows. In 2006 she was ranked 5 on Maxim magazine's "Top 100 Hot List", between Jessica Alba (4th) and Scarlett Johansson(6th).

Amaia is the former girlfriend of current Spain international Sergio Ramos