[1][2][3] Fletcher received a Bachelor of Arts (honours) from the University of Sydney.

[4] Fletcher has been described by ABC News as "a top China specialist who has served three postings in China as an Australian diplomat and is fluent in Mandarin Chinese".

[5] He has held the positions of Third Secretary, Beijing (1986–1988); Deputy Consul-General, Nouméa (1992–1994); Counsellor, Beijing (1997–2000); Deputy Head of Mission, Beijing (2004–2008); Head of DFAT North Asia Division (2008–2010; 2015–2019); and Deputy Head of Mission, Washington, D.C. (2011–2013).

He led the Australian team in negotiations over the China–Australia Free Trade Agreement which was completed in 2014.

[6] In 2021 Fletcher was additionally appointed deputy secretary at Department of Foreign Affairs and Trade.