Kristian began his career as a paralegal at DHP Lawfirm in 2021 and later continued his career as a lawyer at DNT Lawyers, where he remains to this day.

Currently, he is handling several criminal and civil cases, both in and out of court. Some of the major cases he has worked on include the BTS 4G corruption case, employment disputes involving PT. Perindo, a fraud case involving the sale and purchase of condotel units, and various other matters.