John has worked in the public gallery sector since the 1980s with his first appointment being at the National Gallery of Australia in the Australian Art Department. In 1989 he became Assistant Director of Wollongong City Gallery, a position he held for seven years. From 1996 to 2015 he was Gallery Manager (Director) of Gold Coast City Gallery. He has also been President of the Board of the Regional Galleries Association of Queensland from 1998 to 2014 and was Chairman of the Board of Museum and Gallery Services Queensland from its inception in 2004 until 2011.
Since 2016 John has been the owner and Director of All Art Services providing specialised art services as a consultant, curator and valuer. He is approved to value for the Commonwealth Government’s Cultural Gifts Program. Other services include installation and transport.