Kim began his judicial career in 1993 as a judge at the
Uijeongbu Branch of the Seoul District Court. Over the years, he held various judicial positions, including: • Judge at the Seoul and Daejeon
District Courts • Chief Judge at the Jeonju District Court and Seoul Central District Court • Chief Judge of the Seoul High Court and Patent Court He also engaged in academic research, including stints as a visiting scholar at the University of Tokyo and Columbia University, focusing on bankruptcy law. As Chief Judge of the Seoul Central District Court in 2009, Kim presided over high-profile cases, such as the bribery trial of former
Prime Minister Han Myeong-sook. His handling of the case was praised for balancing prosecutorial and defense interests while promoting trial efficiency. == Constitutional Court ==