Military career Ang had served in the
Singapore Armed Forces for 23 years, and was Chief Psychiatrist of the Psychological Medicine Branch before he retired from the SAF in 2003. He attained the highest rank of
Colonel.
Political career In
2011 general election, Ang joined the
Singapore Democratic Party. Along with team members,
Tan Jee Say,
Vincent Wijeysingha and Michelle Leea contested in a four-member
Holland–Bukit Timah Group Representation Constituency (GRC) and obtained 39.92% of valid votes. In 2014, Ang was appointed as chairman of
SingFirst. In the
2015 general election, Ang joined SingFirst along with team members, Tan Jee Say, Melvyn Chiu, Chirag Praful Desail and Mohamad Fahmi Bin Ahmad Rais contested in a five-member
Tanjong Pagar GRC and obtained with 22.29% of valid votes. On 25 June 2020, Tan dissolved SingFirst. Ang joined as a candidate of the PSP in the
2020 Singaporean general election and stood in the newly created
Marymount Single Member Constituency (SMC) but was defeated with 44.96% of valid votes. After the 2020 general election, Ang was appointed as Head of Training and Development of the PSP between 2020 and 2023. On 4 April 2023, Ang was appointed as second Assistant Secretary-General of the PSP.
Medical career Ang ran a private clinic at the
Paragon Shopping Mall. Ang was handed down a three-year suspension by the
Supreme Court for professional misconduct in overprescribed medication on 5 February 2025, and closed his clinic on 17 February 2025. == Personal life ==