Looks like his uncle Pinky together with that old fart really take care of his career path way long ago.
Career
Wong began his career as a civil servant at the Ministry of Trade and Industry. He served as the Ministry's Assistant Director (Research and Planning) from 1997 to 1999, as a secretary to Ong Teng Cheong (who was Singapore's first elected President). He then moved to the Ministry of Finance, where he served as Assistant Director (Fiscal Policy) from 1999 to 2001, before becoming the Deputy Director (Budget) and Head of Economic Programmes. In 2004, he moved to the Ministry of Health as the Director of Healthcare Finance.
From 2005 to 2008, Wong served as the Principal Private Secretary to Singapore's Prime Minister, Lee Hsien Loong.
In 2008, Wong became the Chief Executive of Singapore's Energy Market Authority.