As a child, she made her first notable acting appearance in Travesuras del Corazón, a Peruvian soap opera. She later appeared as a primary character in several telenovelas, particularly gaining international exposure playing the main female character in the internationally-broadcast Besos Robados. Most recently, she has played the main character in the telenovela La Marca del Deseo. In 2011, she released her first music album Llegaré. Stephanie can currently be seen playing the role of Mary Luz Solari on the Netflix TV series Club de Cuervos.