[2] She started her career at the age of 16 with the play Fulgor y Muerte de Joaquín Murrieta, at the University Theater "Carpa Geodésica", then started in her first professional role at the famous Teatro de la Ciudad with Don Juan Tenorio.

Many other telenovelas followed, like Encadenados with Christian Bach, Madres Egoístas with Orlando Carrio, and Infierno en el Paraíso with Juan Ferrara.

She also played important roles in the historical television series Senda de Gloria and La Antorcha Encendida.

In 2006 Rosen appeared in the telenovela Mi Vida Eres Tu, produced by Venevision.

Since 2008, she co-stars as (Bree Van de Kamp) in the US Spanish language adaptation of Desperate Housewives.