David Simmonds was a senior audit partner with Ernst & Young from 1989 to 2017. From 2008 to 2013, he led the capital markets desk in Australia with responsibility for overseeing and reviewing all Australian cross-border fundraisings. He was also involved in several high profile businesses including Ramsay Health Care, John Fairfax Holdings, and Commonwealth Bank of Australia. Mr Simmonds was also an audit partner for the Australian operations of leading US technology companies Hewlett Packard, Sun Microsystems and Oracle. He was a member of the Australian Auditing and Assurance Standards Board (AUASB) from 2006 to 2013, and oversaw the introduction of legally enforceable auditing standards in Australia and the move to harmonisation with international standards. Mr Simmonds is a board member of MS Research Australia, the largest national not-for-profit body dedicated to funding and coordinating multiple sclerosis research in Australia.