Since his appointment as a prosecutor in 2001, Mr. Lee has served as a prosecutor at the Seoul Central District Prosecutors' Office, a researcher at the Supreme Prosecutors' Office, a prosecutor at the Busan District Prosecutors' Office, a secondee at the Financial Intelligence Unit (FIU), a deputy prosecutor at the Seoul Eastern and Southern District Prosecutors' Offices, and a human rights policy officer at the Supreme Prosecutors' Office, before finally retiring in 2023 as the Chief Prosecutor of the Wonju District Prosecutors' Office. During his 22 years and 8 months as a prosecutor, he discharged a wide range of cases, including intellectual property infringement, technology theft and unfair competition, medical malpractice, sexual assault, finance, taxation, homicide, special crime, public security, and human rights policy (due process compliance in investigations). In November 2023, he joined Lin as a partner, and based on his experience, he aims to provide the best legal services by effective communication with clients and helping them through the difficulties they face in various legal disputes.