Hardwick's MD, FRCPC, FCAP career focused on the field of paediatric pathology.
Hardwick was involved with The University of British Columbia (UBC) for more than sixty years as both a student and professor, and is a Professor Emeritus.
His research included the first description of histopathologic implications of differential survival of Wilms' Tumors to pathogenesis of L-methionine toxicity and administrative/management research.