He first began working with Pixar in 2007 when he worked as a 2D animator on the film Ratatouille. He then became a story board artist working on Toy Story 3 and Monsters University. His first screenplay was for The Good Dinosaur and with success, he began work on his next feature Coco.
He has won several Annie Awards for writing and directing. His film Coco also received several Academy Awards including for Best Original Song and Best Animated Feature Film.
He was born and raised in Yuba City, California. He is of Mexican descent.