[2] Upon graduating from the Judicial Research and Training Institute in 1995, Kim began her career as a judge for the Seoul District Court [ko].

[2] During her time at the Chuncheon District Court, Kim was appointed to the Press Arbitration Commission [ko] for a term that began on March 31, 2020, and ended August 31, 2021.

[2] On May 10, 2024, Kim was named as one of 55 candidates, including five other women, who were being vetted for possible nomination to the Supreme Court as a replacement for Justice Noh Jeong-hee [ko].

[10] While presiding over the same division on February 6, 2020, Kim rejected a request for resentencing by a defendant convicted of incest, statutory rape, and abandonment of an infant.

"[11] The court also acknowledged that "instead of protecting the victim, who was his own daughter, [the defendant] committed an inhumane crime by sexually assaulting her and forcing her to have a baby.

[12] Kim Young-jun had initially been sentenced to ten years in prison by the first trial court for his role obtaining and selling illegally filmed adult videos and child pornography.

[12] A panel of judges led by Kim upheld the ten-year sentence for distribution of pornography, noting Ki Young-jun lacked remorse and that "the victims appear to have suffered great mental pain and trauma as a result of the crimes committed, and despite their own measures to prevent distribution, the videos have been sold and distributed to many people, so it appears they will have to live in fear in the future.”[12] Other notable rulings made by Kim while serving on the Seoul High Court include sentencing CJ Group executive Lee Jae-hyun to prison for three years for tax evasion, embezzlement, and breach of trust in 2014; ruling that long-term service allowances applied to non-regular employees at public enterprises who had been converted to regular workers; and deciding that a soldier who suffered an eye injury during training exercises could be recognized as a beneficiary of veterans' benefits.

[16] During the hearing, questions involving First Lady Kim Keon-hee were frequently raised as Democratic legislators asked if it was appropriate to accept luxury handbags as gifts and if it was unconstitutional for the president to veto investigations of his spouse.

"[18] In response to a follow-up question, Kim clarified that she agreed with the view that the Republic of Korea was founded through the March 1st Movement.