Civil Service career

Sim started her career in the Civil Service.

From 1998 to 2000, she was Assistant Director for Finance Policy and Planning at the Ministry of Health (MOH). From 2000 to 2003, she was Assistant Director for Implementation Planning at the Ministry of Home Affairs (MHA). From 2003 to 2006, she was Deputy Director for Trade at the Ministry of Trade and Industry (MTI).

From 2007 to 2009, Sim was seconded to the International Enterprise Singapore as its Regional Director based in Shanghai, where she headed a team assisting Singapore-based companies with investment and sales in East China.

From 2009 to 2011, she was Director of the National Population Secretariat and led efforts to restructure the secretariat into the National Population and Talent Division under the Prime Minister's Office (PMO).

Political career

Sim entered politics when she joined a four-member People's Action Party team to contest in Holland–Bukit Timah GRC during the 2011 general election. The PAP team won with 60.08% of the vote against the Singapore Democratic Party so Sim became a Member of Parliament representing the Bukit Timah ward of Holland–Bukit Timah GRC. On 21 May 2011, she was appointed Senior Parliamentary Secretary at the Ministry of Law and Ministry of Education. On 1 November 2012, she relinquished her appointment at the Ministry of Law and became Senior Parliamentary Secretary at the Ministry of Communications and Information while continuing to hold her appointment at the Ministry of Education. On 1 September 2013, she was promoted to Minister of State and continued serving at the Ministries of Education, and Communications and Information.^[2]

During the 2015 general election, Sim contested as part of a four-member PAP team in Holland–Bukit Timah GRC again and they won with 66.6% of the vote against the Singapore Democratic Party. Following the election, on 1 October 2015, Sim was promoted to Senior Minister of State and appointed to the Ministry of Finance and Ministry of Culture, Community and Youth. She was also appointed Deputy Government Whip.^[3] On 22 August 2016, she relinquished her appointment at the Ministry of Finance and switched to the Ministry of Trade and Industry while continuing to serve at the Ministry of Culture, Community and Youth.^[4] On 1 May 2018, she switched from the Ministry of Trade and Industry to the Ministry of Communications and Information, while continuing to serve at the Ministry of Culture, Community and Youth.^[5][2]

At the 2020 general election, Sim joined the four-member PAP team contesting in Holland–Bukit Timah GRC again and they won with 66.36% of the vote against the Singapore Democratic Party. On 27 July 2020, Sim was appointed Senior Minister of State at the Ministry of National Development and Ministry of Communications and Information. On 15 May 2021, she relinquished her appointment at the Ministry of Communications and Information and became Senior Minister of State at the Ministry of Foreign Affairs while concurrently serving as Senior Minister of State at the Ministry of National Development.^[2]