Worker's Party Member of Parliament Chen Show Mao is among seven MPs nominated to sit on the powerful Committee of Selection.
This makes the Aljunied GRC MP the first non-People's Action Party MP to be named to this committee since Singapore's independence.
The committee nominates and picks which MPs will sit on committees such as the Public Petitions and Public Accounts Committees.
In a Facebook post, Chen said, "I feel privileged to be nominated for appointment to the Committee of Selection and look forward to working with the Speaker and other members of the committee in the performance of its functions."
Chen is among seven MPs named by the Speaker of Parliament and the House is expected to approve the list when Parliament sits next week.
The other MPs nominated are: Gan Kim Yong, Hri Kumar Nair, Mohamad Maliki Osman, Ng Eng Hen, Josphine Teo and Lawrence Wong.
On Monday, Parliament will also elect two new Deputy Speakers. Five bills, including the Income Tax (Amendment) Bill and the Goods and Services Tax (Amendment) Bill, will also be introduced.