James qualified as a veterinary surgeon from the University of Bristol in 1998 and after a period in mixed practice returned to Bristol in 2001 to take up a residency in Farm Animal Medicine.
He later joined Prof Andrew Bradley and Prof Martin Green on a national dairy cow mastitis research project and was involved in the development of the national AHDB Mastitis Control Plan.
He subsequently completed a three-year RCVS Trust residency in Production Animal Medicine, dividing his time between dairy practice in Glastonbury, teaching, research and laboratory consultancy work with QMMS Ltd in Somerset.