Kim & Chang (2011-Present) 

Chief Prosecutor, Seoul High Prosecutors’ Office (2011) 

Deputy Prosecutor General, Supreme Prosecutors' Office (2009-2011) 

Chief Prosecutor, Suwon District Prosecutors' Office (2009) 

Chief Prosecutor, Director of Prosecution Bureau, Ministry of Justice (2008-2009) 

Senior Prosecutor, Director of Planning & Coordination Department, Supreme Prosecutors' Office (2006-2008) 

Senior Prosecutor, Head of Ansan Branch of Suwon District Prosecutors’ Office (2005-2006) 

Investigation Planning Officer, Sepcial Investigation Support Department, Supreme Prosecutors' Office (2004-2005) 

Senior Prosecutor, Busan High Prosecutors' Office (2003-2004) 

Senior Prosecutor, 2nd Special Investigation Department, Seoul District Prosecutors' Office (2002-2003) 

Senior Prosecutor, 3rd Special Investigation Department, Seoul District Prosecutors' Office (2001-2002) 

Official Reporter, Supreme Prosecutors' Office (1999-2001) 

Senior Prosecutor, Public Security Department, Suwon District Prosecutors' Office (1998-1999) 

Prosecutor Researcher, Supreme Prosecutors' Office (1996-1998) 

Senior Prosecutor, Head of Ganggyeong Branch of Daejeon District Prosecutors' Office (1995-1996) 

Prosecutor, Seoul High Prosecutors' Office (1994-1995) 

Prosecutor, Seoul District Prosecutors' Office (1993-1994) 

Prosecutor, Ministry of Justice (1991-1993) 

Prosecutor, Kangnung Branch of Chuncheon District Prosecutors' Office (1989-1991) 

Prosecutor, Seoul District Prosecutors' Office (1986-1989)