[1][2] Park had previously served as the President of the Student Council during schooldays and later became a secretary of 2 former MPs — Kim Geun-tae and Lim Chae-jung.
Prior to be elected to the National Assembly, he served as the political adviser to Park Won-soon while he was the Mayor of Seoul in 2016, as well as the Executive Officer for Judicial Affairs of the Office of the President under the President Moon Jae-in from 2017 to 2019.
[5] He went to the Hanyang University, where he consecutively graduated with a LLB, an LLM and a PhD degree in International Law.
[6] He then moved to the Netherlands and obtained a postgraduate LLM degree in Business Law at the Erasmus University Rotterdam.
[6] While studying at Hanyang University, he had completed his national service at the Joint Security Area (JSA) from 1994 to 1997.
[3] Following his arrest, he was sentenced to 10 months in prison under the breach of the National Security Act on 15 February 1999.
Following the Uri's victory in the election amid the impeachment of the then President Roh Moo-hyun, he became a secretary to Kim Geun-tae,[3][8] the then parliamentary leader of the party.
[15][16] On 16 December 2019, Park announced he would run for Gimpo 2nd constituency in the 2020 election through YouTube and Facebook.
[20][21] After won preselection on 5 March,[22] Park faced a challenge from the incumbent MP and the United Future candidate Hong Chul-ho.
[11] Park is a colleague to Kim Chang-yeol, a member of a hip-hop trio DJ DOC.