Mark Esler commenced his IT career at IBM Australia in 1976 where he held a number of roles before joining the Data#3 group in 1984 as an executive director. Mr Esler was an executive director of Data#3 Limited from 1997 to 2002 and performed senior management roles in sales and marketing, operations and supply chain before retiring as general manager of Queensland in 2014. He has been actively involved in many IT related forums, and was a member of both the Asia Pacific and World Wide Hewlett-Packard Global Partner Advisory Boards from 2011 until 2014. Mr Esler has also been recognised as a 25-year Fellow of the Australian Institute of Company Directors.