Joined Rakuten as intern from college and entered as new graduate in 2010. Start working as developer of Rakuten Card’s membership service web site “Rakuten e-NAVI” and won Rakuten award MVP among all the Rakuten group employee. Moved to New Service Development Company Incubation Office and was in charge of restaurant searching application called “Rakoo” as technical director.  Mainly played a role as project planner, operation manager, and product manager until leaving Rakuten in 2016.  Currently, engaged in Your mystar, Inc. as CTO.