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2023.7. ~ Present
Vice Minister of Employment and Labor (10th)
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2015.1. ~ 2017.3.
Secretary to the President for Employment and Labor
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2013.4. ~ 2015.1.
Senior Administrator of the Secretary Office to the President for Employment and Labor
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2010.1. ~ 2013.4.
Public Interest Commissioner, Seoul Regional Labor Relations Commission
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2009.6. ~ 2023.7.
Director and Senior Research Fellow, etc. of the Industrial Relations Research Division, Korea Labor Institute
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2007.5. ~ 2009.5.
Director of Mediation and Adjudication Bureau, National Labor Relations Commission
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2004.9. ~ 2007.5.
Chairman of the Incheon Regional Labor Relations Commission
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2004.5. ~ 2004.9.
Policy Adviser to the Minister (Grade 3), Ministry of Construction and Transportation
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2003.8. ~ 2004.5.
Expert Member of the Labor Reform Team, Presidential Office
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2003.3. ~ 2004.5.
Visiting Research Fellow, Korea Labor Institute
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2002.8. ~ 2004.10.
Public Interest Commissioner, Seoul Regional Labor Relations Commission
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1998.7. ~ 2002.4.
Editor-in-Chief, Labor Today
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1997.5. ~ 2000.11.
Public Interest Commissioner, Seoul Regional Labor Relations Commission
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1996.5. ~ 1998.1.
Expert Commissioner, Labor Relations Reform Commission
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1994.6. ~ 1998.4.
Labor Journalist, Monthly 『Social Commentary』
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1992.7. ~ 1994.6.
Labor Journalist, Monthly 『People Finding Pathways』