From 1977-1978 Justice White was an Associate to Sir Nigel Bowen on establishment of Federal Court. He was employed as a solicitor at Stephen Jaques & Stephen from 1979-1982 and was a partner in litigation from 1982 to 1986. In 1986 he was admitted to the New South Wales Bar.
Justice White was a member of the Education Committee of the NSW Bar Association from 1995-2002 and was appointed Senior Counsel in 1998. In 2004 he was appointed to the Equity Division of the NSW Supreme Court. In 2017 he was appointed a Judge of Appeal.
He is a former NSW Bar Association representative on the board of the College of Law and Member and Chair (2007 – 30 June 2012) of the Legal Qualifications Committee of the NSW LPAB.