Deneb began her professional career at an animation company in Valencia called Hampa Studio in 2008. She holds a degree in Audiovisual Communication from the Polytechnic University of Valencia at the Gandia Campus and has a Master's in Audiovisual Production for film and television from the Complutense University of Madrid. She has participated in more than twenty film and television projects, both nationally and internationally, for distribution in theaters and online platforms such as Apple TV+, Netflix, Paramount+, Hulu, HBO Max, and Movistar+, among others. Several of these projects have received awards in the audiovisual industry, such as the series "Five Days at Memorial" from Apple TV+, which won an Emmy in the category of Outstanding Special Visual Effects in a Single Episode, with Deneb as the VFX Producer.

Her notable fiction projects include "Margarita, A Magical Adventure," "Shadownsters," "Talking Tom and Friends," "Deep," "Klaus," "Tad the Lost Explorer 3: The Emerald Tablet," "The Head Season 1," "Official Competition," "Paradise Season 1," "Sky High," and "Adios." She combines her work as a VFX Producer with academia, teaching masterclasses and lectures on animation and VFX production at specialized centers since 2019. In 2018, with the goal of supporting the presence, equality, and visibility of women in the animation sector, Deneb co-founded the association MIA, Women in the Animation Industry, where she served as Vice President and Treasurer until 2021.