Takahiro worked at a mega-venture for ERP packages and engaged in technical research for AWS when it was quite new to Japan, and the launch of a cloud operations service. He covers a wide range of businesses from cloud infrastructure construction and operation to pre-sales and implementation consultants and system audits for listed companies and financial institutions. Thereafter, worked at two healthcare startup companies where, as the first engineer and CTO, he worked on the launch of a development team and the in-house production of systems. He led the development and operation of pharmaceutical trading services and physician referral services on a full stack basis, both of which resulted in the sales of both companies to others successfully