Seeking for my next Opportunity

Nov 2020 – Present USA

I’m currently seeking for a next opportunity, while serving as a Board of Director at Treasure Data, Inc.

I’m also helping entrepreneurs based on my knowledge and experience (list of portfolio).


VP of Technology, Data Services Business Unit

Arm, Ltd.

Jul 2018 – Oct 2020 San Jose, California, USA

I joined Arm Limited, a global semiconductor and software design company owned by the SoftBank Group, through their acquisition of Treasure Data, Inc. at 2018/07, and became VP of Technology of Data Services Business Unit.

As a founder of the company, I worked hard on PMI (Post Merger Integration) in many areas like Culture, HR, Product, Engineering, Customer Support, IT, and other various areas.


Founder & CTO (Chief Technology Officer)

Treasure Data, Inc.

Sep 2012 – Jul 2018 Mountain View, California, USA

Hironobu Yoshikawa, Sadayuki Furuhashi, and myself has founded Treasure Data, Inc. We have scaled from zero to $100m annual recurring business in 9 years and acquired by Arm Limited.

As a founder & CTO (Chief Technology Officer), I was in charge of Product Management, Engineering, and Customer Support plus working very closely with adjacent areas like Sales & Marketing. The achievements include:

  • Built $100m B2B SaaS Business: Acquired 500+ customers (average $200k annual contract), and met with 300+ customers face-to-face.
  • Raised $54.1m from leading Silicon Valley Venture Capital Firms: Worked with Bill Tai, Tim Guleri @ Sierra Ventures, Andy Vitus @ Scale Ventures, Nick Adams & Jerry Yang @ AME Cloud Ventures, Dan Scheinman, Eric Yuan, James Lindenbaum, Peter Szulczewski, Danny Zhang, Anand Babu Periasamy and so many more venture capitalists and enterpreneurs (Crunchbase).
  • Built Product Vision and Roadmap: Have delivered category-winning product in CDP (Customer Data Platform). The product was selected as “Best CDP Solution” amongst 120+ other competitive products.
  • Built Global Product, Engineering, and Customer Support Team: Built the global organization with core locations at Mountain View (USA), Tokyo (Japan), Vancouver (Canada), and Cambridge (UK).

CTO (Chief Technology Officer)

Preferred Infrastructure

Jun 2006 – Aug 2011 Tokyo, Japan
I was a 6th member of Preferred Infrastructure, currently known as Preferred Networks, a leading AI company in Japan and later became CTO. I was in charge of building the enterprise distributed search engine called Sedue.

Visiting Researcher

Argonne National Laboratory

Jun 2006 – Aug 2011 Chicago, Illinois, USA

I was a master degree computer science student at University of Tokyo, but at the same time, was a visting researcher for MCS (Mathematics and Computer Science) Division of Argonne National Laboratory, working on HPC (High Performance Computing).

My research topic was how to handle large volume of data (~petabytes) with the large-scale super computer. Argonne had a super computer IBM BlueGene/P, and I was working on the projects below to explore building the the world’s fastest computing and storage system:

My supervisors were:


Student - Computer Science (Bachelor, Master)

School of Science, The University of Tokyo

Apr 2004 – Mar 2010 Tokyo, Japan

I majored in Computer Science at The University of Tokyo, working on HPC (High Performance Computing). My supervisors were Yutaka Ishikawa and Hiroya Matsuba.

I have received an incentive student award, and later was recognized as a distinguished alumni.