Jenny qualified as a Veterinarian at Liverpool University in 1985 and immediately took up an internship in large animal medicine and surgery at the New Bolton Centre in the USA. She spent time as an equine surgery resident at Ohio State University before taking up a post in surgical research on implantable devices in Arizona.
Jenny returned to the UK in 1991 to work in private equine practice, mainly in racing. She travelled extensively to horse trials as a private vet. Jenny worked as British Eventing Team Vet from 1999-2009.
Jenny was the Director of Veterinary Services for the London 2012 Olympic and Paralympic Games.