Ignatius joined the MiCare Board in September 1998. He was appointed Vice President June 2000, and President in 2009. He is a Barrister and Solicitor and the principal of a commercial and employment law firm.
He was a Board member of Dental Health Victoria; Harm Reduction Victoria, the voice of and for Victorians who use drugs; Annecto, a large disability and aged care provider and other not for profit organisations.
He commenced his career as a publisher and bookseller, became an academic and taught in Melbourne, Papua New Guinea, USA and England. He moved on to become the assistant federal secretary of the federal universities academic staff association; joined the government and was appointed the CEO of the Occupational Health and Safety Authority, the forerunner of WorkCover.