Jonathan spent the first 10 years of his career in the Australian Merchant Marine. In 1987 he gained his Unlimited Masters Certificate and travelled to Europe where he was appointed Captain of a 65m Feadship.
Jonathan has since captained several yachts up to 120m, assisted in designs with Espen Øino Naval Architects and project managed a range of interesting projects at Danish Yachts. Jonathan then came ashore to join the YPI team as Fleet Manager.