After university graduation, he went abroad and studied in Korea. Returning to Japan and joining a major IT integrator, he installed and operated number of client e-commerce websites. Founded the company Makeshop in 2004, he then joined GMO Group in 2005. Mukaihatake leading the growth, 22,000 online stores are run by e-commerce ASP MakeShop, now with No.1 distribution total in Japan.