| 2022-Present |
Lee & Ko |
| 2020-2022 |
Korea Polytechnics, Executive Director of Planning & Training |
| 2019-2020 |
Seoul Regional Employment & Labor Office, Head |
| 2017-2019 |
Economic, Social & Labor Council, Director of Operating Bureau |
| 2015-2017 |
Blue House, Senior Administrator of Employment & Labor Secretary Office |
| 2015 |
MOEL, Director of Industrial Safety Prevention Policy Bureau |
| 2014-2015 |
MOEL, Spokesperson |
| 2013-2014 |
Gwanggiu Regional Employment & Labor Office, Head |
| 2012-2013 |
MOEL, Director General of Public Labor Policy Bureau |
| 2011-2012 |
MOEL, Director of Labor-Management Cooperation Division |
| 2008-2011 |
MOEL, Director of HRD & Public Official Labor Relation Division |
| 2006-2008 |
MOEL, Director of Planning and Budget Division |
| 2005-2006 |
Uijongbu District Employment & Labor Office, Head |
| 2004-2005 |
Economic, Social & Labor Council, Director of Planning Division |
| 2002-2004 |
Seoul Employment & Labor Office, Director of Labor Inspector |
| 1993-2002 |
Deputy Director of Labor Law, Labor Policy, Occupational Accidents Division |