After graduating from ArtCenter in 1990 (BFA in Illustration), Justin trained as a traditional matte artist for Walt Disney under Harrison Ellenshaw and Paul Lasaine. In 1992, he was hired by Walt Disney Feature Animation as a background painter/visual development artist contributing to Aladdin, Pocahontas, The Hunchback of Notre Dame, Tarzan and Hercules. In 2000, Justin returned to live-action, working as a matte painter at Illusion Arts under Syd Dutton. In 2005, he was hired as a matte painter for Dreamworks Animation, working on Kung Fu Panda and The Croods before being promoted to matte painting supervisor on the feature films Shrek the Final Chapter and Puss in Boots
Justin's work has been published in The Art of Walt Disney, The Tarzan Chronicles, The Art of The Hunchback of Notre Dame and The Art of Pocahontas. His illustration work has been published in several magazines and video box covers for the gaming industry.