Rei Kubonaga
最高技術責任者 at MC Digital
Chiyoda, Japan
Summary
👤
Senior🎓
Top SchoolRei Kubonaga is a seasoned technology executive and CTO with 12 years of experience leading product development, machine learning teams, and engineering organizations from early-stage builds to IPO-ready businesses. He scaled and managed teams of 20+ while driving product growth and monetization at Wantedly—where he helped grow Visit into a ¥2 billion+ annual business—and now leads MC Digital’s in-house engineering for fleet management and dynamic pricing under Mitsubishi Corporation. A hands-on engineer since the early startup days, he launched ML-driven recommendation systems in 2018 and continues to bridge applied machine learning with pragmatic product strategy. Trained in probability at Kyoto University, Rei combines quantitative rigor with people-first leadership and a proven track record of turning prototypes into award-winning, revenue-generating products.
12 years of coding experience
2 years of employment as a software developer
Bachelor's degree, Probability, Bachelor's degree, Probability at Kyoto University
Github Skills (8)
ruby2
rack-middleware2
middleware2
skype2
rack2
email-parsing2
diaspora1
docker1
Programming languages (2)
Github contributions (5)
wantedly-archive/objective-c-style-guide
Feb 2014 - May 2014
Contributions:11 commits in 2 months
reikubonaga/rack-lineprof
Oct 2015 - Oct 2015
Contributions:3 pushes in 1 day
profilingrack-middlewarerackrubymiddleware
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