Dr. John DiLeo is a Principal Consultant on Datacom New Zealand's Application Security Services team, providing support and guidance to clients in launching, managing, and maturing their enterprise software assurance programs. He volunteers his time as the Auckland-area leader of the OWASP New Zealand Chapter and Chair of the annual OWASP New Zealand Day conference. Before turning to full-time roles in application security, John was active as a Java enterprise architect and Web application developer. In an earlier life, John built discrete-event simulations of large distributed systems. John is on the core team for the OWASP Software Assurance Maturity Model (SAMM) Project, and is active on the OWASP Education and Training Committee.