Tetsuo Yamabe is a computer science expert with a Ph.D. from Waseda University. Currently, he is the leader of a team of data engineers and scientists working to develop education products such as StudySapuri and Quipper. Prior to his current work, Yamabe held various positions in different organizations, including Recruit Marketing Partners Co.,Ltd., GMO Internet, Inc., and Nokia Research Center Tokyo. He has also been a visiting researcher at the Helsinki Institute for Information Technology and Waseda University. At Recruit Marketing Partners, he was the Head of Data Innovation Division. As a senior systems architect, he oversaw the firm's data infrastructure group. Yamabe was also a research associate at Waseda University, where he earned his Ph.D.