Andrew Tierney is the owner and Managing Director of CastleSoft Pty Ltd and has held a number of management roles during his career which include:

Project Manager - Jacobs Cost Account Manager - BAE Systems Application Development Manager - ADI Acting Regional IT Manager - Roads and Traffic Authority Computer Centre Manager - Roads and Traffic Authority Database Administrator - Roads and Traffic Authority Network Administrator - Roads and Traffic Authority

Andrew holds a Bachelor of Mathematics degree with Computer Science from the University of Newcastle, and is currently completing his PhD in Database Meta Engine Enterprise Solutions with Curtin University.