Sam is a professional debate and oratory coach working full time with schools such as Raffles Institution and Anglo-Chinese Junior College. He also regularly conducts training and workshops on debate, public speaking, negotiation, and model UN activities with a wide range of schools and institution in Singapore and abroad. Sam attended Harvard University on a Public Service Commission Overseas Merit Scholarship and has previously worked in the Ministry of Defence, the Ministry for Foreign Affairs and the Ministry of Law. Sam was also the Captain of the Singapore National Team for WSDC 2000, WSDC Adjudicator for Singapore in 2012 & 2015 and part of the WSDC organisational Committee in 2015. He has guided debaters and orators to over 30 championship titles, including international competitions such as the Asian World Schools Debating Championships; the Prometheus Cup and the Winter Holiday Open WSDC 2019.

• Championship coach: 25 National and International Debate Championship titles & 9 National Oratory & PESA titles
• 9 National Oratory (PESA) Championship titles
  Schools coached include: Raffles Institution (RI), Anglo Chinese Junior College (ACJC), St Margaret’s Secondary, Nanyang Girls High, Nan Hua High School, Kuo Chuan Presbyterian Primary School, ACS (Junior) School
• Current Model United Nations (MUN) for ACJC, RI, Hwa Chong International, Dunman High
• World Schools Debating Championships (WSDC) judge, 2012 & 2015
• Team Captain, Singapore National Debate Team 2000
• Assistant Director, Ministry of Law 2011-12
• Diplomat, Singapore Foreign Service, 2007 – 2011
• Harvard University, 2006
• Harvard University interviewer and interview panelist