Mr Dennis had 35 years with global professional services firm Ernst & Young, and was Queensland Managing Partner from 2001-2007. He held several executive and board roles at EY, including COO in Oceania, and Deputy COO and CFO for the Asia-Pacific practice from 2010-2014 where he was responsible for overseeing the financial and operational integration of the Australian and Asian member firms.

Mr Dennis is currently non-executive Chair of ASX listed AF Legal Group Limited, a non-executive director of ASX-listed Motorcycle Holdings Limited, Cettire Limited, Apiam Animal Health Limited and Step One Clothing Limited, and is a member of the Queensland Advisory Board of Australian Super.

Mr Dennis is dual qualified in law and commerce.