For the past 30 years, David has had a wide range of executive leadership roles in the technology and telecommunications sector including IBM, Compaq and Motorola. He is currently FOSI's Director for Europe. FOSI is an international non-profit organisation which works to make the online safer for kids and their families.

David is an Executive Board of the UK Council for Child Internet Safety (UKCCIS), the British Government's principal advisory body for online safety for children and young people. He chairs the UKCCIS Filtering Working Group that brings together the family-friendly network filtering initiatives of the UK’s leading ISPs, mobile operators and public Wi-Fi providers. David is former chair of the UKCCIS Over Blocking Working Group (2013-14), which worked with the UK’s four leading ISPs to minimise the inadvertent blocking of legal content to minors. He is an active member of the UKCCIS Evidence Group and Social Media Working Group. In addition, he is a member of the Internet Matters Expert Advisory Panel, an internet safety portal established by the UKs four leading ISPs.

David is a member of the United Nations ITU Child Online Protection (COP) Working Council based in Geneva, as well as actively involved in a number of initiatives within the European Commission.

David is a Freeman of the Worshipful Company of Information Technologists, one of the City of London’s livery companies and granted its Royal Charter in 2010. His specific charitable interests include the implementation of assistive technology and social media for young people with special needs.