Douglas is a barrister at Castan Chambers in Melbourne, specialising in corporate, commercial, finance and insolvency matters. He has appeared at first instance and on appeal in the Supreme Courts of Victoria, New South Wales, Queensland and South Australia as well as the Federal Court of Australia.
Douglas was a director of Clarendon Lawyers before signing the Bar Roll in 2008. From 2001 to 2007, he was the Company Secretary of Telstra Corporation Limited. He was a director of the Telstra Superannuation Scheme for 7 years and was the senior Telstra executive with responsibility for liaising with law enforcement and national security agencies and on a number of occasions represented Telstra before Senate Estimates and other Parliamentary committees.
Before joining Telstra, Douglas was a partner in the Melbourne office of Mallesons Stephen Jaques. He specialised in corporate finance and securities law, mergers and acquisitions and joint ventures and also advised on telecommunication regulatory matters.
Douglas holds a Graduate Diploma in Applied Finance and Investment and in 2006 he completed the Advanced Management Program at Harvard Business School. He was the 2011 National President of Chartered Secretaries Australia and previously chaired their Legislation Review Committee.