Dr. O’Neil is a physiotherapist and assistant professor in the School of Rehabilitation Sciences, in the physiotherapy program at the University of Ottawa. As a physiotherapist, her main interest is providing rehabilitation care for people living with neurological conditions and community-based rehabilitation. 

Her research program focuses on improving access to effective physiotherapy interventions. Using technology, her doctorate thesis targeted the implementation of intensive home-based telerehabilitation programs for people living with a moderate or severe traumatic brain injury. She has done work in capacity building and telerehabilitation implementation across Canada, including implementing a telehealth fall prevention program for francophone communities living in minority situations. From a global health perspective, using person-centered and mixed-method approaches, Jennifer aims to improve health equity and access to rehabilitation services.