Yoshimoto graduated from Keio University and worked for several companies including Yahoo Japan and Nomura Research Institute. He joined SBI Sumishin Net Bank in February 2015. He was in charge of projects concerning start-up businesses. In August 2015, he became the general manager of FinTech business planning department (present post).
In March 2016, he became in charge of various projects concerning API including the case of open API which was the first case in domestic banks.
A member of “Review Committee of Open APIs” of Japanese Bankers Association, “Council of Experts on FinTech in Financial Institutions” of FISC, and “Workshop on advancement of Financial Industry Using IT” of Bank of Japan.