Meet the team behind Datachain

Our team

Tetsushi Hisata

Tetsushi Hisata

Founder of Speee Inc. In 2007, he founded Speee and became the CEO. In 2011, replaced the representative to concentrate on creating new businesses. In 2018, founded Datachain Inc. and is in his current position.

Jun Kimura

Jun Kimura

After he sold Momentum.Inc, the first ad verification technology company in Japan, to a KDDI group company as the founding CTO, he launched Datachain, where he led the research and development of the IBC Module, Cross Framework, and other in-house technologies as CTO.

Toshihiko Okubo

Toshihiko Okubo

Engaged in designing and developing ad-tech products at Speee, Inc and IT-based rapid-growing companies. he has been designing and developing the entire server side since Datachain is established.

Ryo Sato

Ryo Sato

Engaged in statistical analysis and machine learning projects for optical instruments and life informatics at a software development company. At Datachain working on product design and implementation of blockchain products.

Masanori Yoshida

Masanori Yoshida

After engaging in research and development at Hitachi, Ltd., engaged in operation and development of online securities services in the GMO group. At Datachain, engaging in research and development of blockchains scaling solutions such as Plasma.

Koji Matsumiya

Koji Matsumiya

At MicroAd, led the team as a scrum master and tech lead, and engaged in server-side and streaming processing infrastructure development for the ad platform. At Datachain, engaging in server-side development.

Motoki Yoshida

Motoki Yoshida

After working at an educational startup, he was involved in launching multiple businesses at Cyber​​Agent as a Representative of ad tech products. At Datachain, engaged in business planning, recruitment and public relations.

Daiki Ishikawa

Daiki Ishikawa

After working as Director of Cyber​​Agent Advertising Business Division, Director of Joint Venture Company, Vice President of Indonesia Advertising Business Company, Participated in Datachain and engaging in all sales as a sales manager.

Keiichi Koga

Keiichi Koga

At IBM Japan, led global AI / DX projects as a project manager. After participating in Datachain, engaged in project management and business development.

Susumu Toriumi

Susumu Toriumi

After completing a PhD (Information Science and Engineering), engaged in strategy development and new business projects for a wide range of clients such as consumer goods, logistics and insurance at the Boston Consulting Group. At Datachain, he is involved in business development and strategy development.

Come join an industry-leading team.