Born in Barcelona, Jaenada began his career on such television programs as Al salir de clase. His performance pushed him through Spanish series such as Hospital Central, El Comisario, Companeros and as Marcos on 13 episodes of Javier ya no vive solo. He made his feature debut in Lisastrata and word of Jaenada's talent spread among the filmmakers, and Achero Manas gave him his first opportunity to star in a feature film November (2003), a comedy very fruitful for Jaenada. He had since appeared in increasingly important roles in Noviembre, Descongelate!, El juego de la verdad, XXL, Aloe, Camaron, Somne, Carne de neon, Crimines ejemplares de Max Aub, Redondeo, Dias azules, Skizo, El efecto Rubik (& el poder del color rojo), La vida abysmal, Todos estamos invitados, Sub-Way, Trash, and Sukalde