After passing the 48th Judicial Examination, Jeon Soyeon worked at Lawfirm Hwawoo(Yoon & Yang LLC), where she handled civil and criminal litigation and advisory work, including intellectual properties law, trade secret protection act, and personal information protection act. After 10 years of career at Lawfirm Hwawoo, Jeon Soyeon moved to the 3M Korea law department where she handled general corporate legal work, including fair trade, environmental law, serious accidents punishment act, and personal information protection act. She also obtained Master of Laws degree (LL.M) from Vanderbilt University Law School in the United States and gained work experience at the Ballard Spahr law firm in the United States. Currently, as a partner lawyer of Lawfirm Siwoo, Jeon Soyeon practices various legal work, including civil law, corporate law, intellectual properties law, personal information, fair trade, environmental law, family law, and real estates.