David began his career in broadcast and print journalism in Singapore in 1996. In 2000-2001, he worked as the creative director of GetIT Multimedia, a Silicon-Valley-headquartered dot-com company specialising in rich-media-applications and e-learning in the Asia Pacific. Since then, David has held key management and senior consulting positions in award-winning multinational private corporations and the public service.
As the chief knowledge officer of the Raffles International hotels & resorts group in 2001-2003, David facilitated the knowledge capital integration of the newly-acquired Swissôtel and Resorts chain with the Raffles Hotels and Resorts. His efforts led the corporate group to win the Intelligent Enterprise 20 Award (2002), impressing judges from 10 world class IT research and management consulting firms, namely, Accenture, Atos Origin, Braxton, Frost & Sullivan, Gartner, IDC, KPMG, META Group, Ovum, and PwC Consulting. Realising that emerging new Internet technologies could influence the ways information and guest services were provided in world class hotels and resorts, David pioneered the first in-house "Information Literary" (IL) staff training workshops at the Raffles International Training Centre in January 2004.
Appointed as Senior Consultant to the Singapore Workforce Development Agency (WDA) and Ministry of Manpower (MOM) in 2004-2005, David facilitated national workplace strategy development for industry and promoting workplace leadership in the Tourism and Hospitality, Healthcare, Retail, Aerospace (MRO) and Logistics (Services) industry sectors respectively. David was a member of Singapore's Quality Workplace Efforts and Strategies Taskforce (QWEST), and co-representative of WDA to the Singapore Tripartite Committee for Work-life Strategy, which developed Singapore's inaugural Work-life Harmony Week in 2005. He authored WDA's pioneering strategy for "Cultivating Communities of Practice and Visualising Great Workplaces" (08 Oct 2004), which broadened the thinking and conversations of policymakers about inter-agency cooperation, collaboration with industry stakeholders, and public consultation, while creating value by identifying new avenues for researchers to collect, analyse and share qualitative data in an increasingly "social" and unpredictable economy.
Over the years, David has influenced a combined total of more than SGD$2.5 million worth of funding across a variety of private and/or social enterprise projects in Singapore and internationally. For these and other achievements, Global Knowledge Review (UK) described David as "one of Asia's preferred strategists for implementing human capital and knowledge management initiatives" (2004 and 2005). In 2014, Telefónica's start-up accelerator, Wayra UK, recognised his contributions to telecommunications, Internet & e-learning enterprise, by including him in its global list of Influential Founders on Twitter. In 2015, LinkedIn included David in its global Top 20 "Creative Services Manager / Producer" members' list. In 2016, David's story of entrepreneurship was chosen by Curtin School of Management as a case study to teach Curtin University students about Opportunity Recognition (MGMT3004 Entrepreneurship).