An Autism Behavior Specialist is someone who works with people on the Autism Spectrum. An individual that specializes in care of autism should be certified or licensed in ABA with a specialization in autism. The certifications a behavioral specialist should hold are one of the following: BCBA, BCaBA, QBA, or QASP S. The certified practitioner puts together a series of programs that allow the person to manage their challenging behaviors and gain new skills so that they can be as functional as possible in their communities.