Professor Park is a faculty member at the Korea University School of Law and a co-founder and director of Open Net Korea, where he specialises in freedom of expression and media monopolisation issues, and the enforcement of privacy, defamation and “fake news” laws.

He serves as an academic board member of the Global Network Initiative and is an advisor to the Freedom Online Coalition. Professor Park has also served as legal advisor to the Korea Film Council and the Ministry of Culture, as a member of the National Media Council advising the country’s legislator, and as a commissioner of the Korean Communication Standards Commission regulating the country’s broadcasting and online media.