Keith Chen joined CSK Corporation (now SCSK Corporation) in September 1991. In September 1994, he joined Microsoft Product Development Ltd. (now Microsoft Development Ltd.) in February 1998, he was appointed as Program Manager. In March 2013, he joined Catalina Marketing Japan K.K. as IT manager and in November 2016 he was appointed as director network, data and digital. In March 2018, he joined Adecco Japan as Director Solution Delivery. In June 2020, he has joined Marsh Japan, Inc. as North Asia MGTI Senior manager. He joined Frontier Management Inc. in November 2022 as managing director IT.