• 1998-2004: Member, Committee for the Promotion of Employment for the Disabled, Ministry of Labor
• 1995–1998: Academic Advisor, Catholic Religious Education Research Institute for Individuals with Intellectual
Disabilities, Archdiocese of Seoul
• 2001: Principal investigator of the first research study on the advancement of special education policy and
practices supported by Ministry of Education and Human Resources Development
• 2002–2003: Member, Planning Task Force for the Development Plan for Disability Welfare,
Office for Government Policy Coordination under the Office of the Prime Minister
• 2002–2006: Policy Evaluation Commissioner, Ministry of Education & Human Resources Development(Ministry of Education)
• 2004–2014: Member, Education Committee, Rehabilitation International (RI) Korea
• 2005–Present: Member, Disability Discrimination Conciliation Committee,
National Human Rights Commission of Korea
• 2009–2017: Policy Advisor, Citizens' Coalition for Barrier-free Living Environment
• 2009–2018: First Editorial Board Member, 『Disability & Employment』journal,
Employment Development Institute, Korea
Employment Agency for Persons with Disabilities(KEAD)
• 2013: Author of the Korean Text for the PyeongChang Declaration: “Having All Voices Heard, Making Changes”,
2013 PyeongChang Special Olympics World Winter Games
• 2023.3-2027.6 Member of National Curriculum Committee
National Education Commission of Korea
First(23-25) & Second(25-27) term