Sakurabunsha LLC

Engineering Excellence.
Amplified Capability.
Outstanding Outcomes.

CTO Advisory & Technical Leadership for ambitious companies

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Three decades of hands-on engineering leadership at the world’s top technology companies.
Built and scaled a global engineering organization from the ground up, now bridging engineering talent across borders.

Strategic Technology Leadership

Technical Advisory / External CTO

Hands-on technical leadership for companies seeking to strengthen their engineering capabilities and technology strategy.

  • Technology strategy and roadmap
  • Engineering team building and mentorship
  • Architecture review and modernization
  • Technical due diligence

Executive Advisory

Strategic guidance for technology leaders navigating growth, transformation, and cross-border challenges.

  • Executive coaching for technical leaders
  • Board-level technology advisory
  • Digital transformation strategy
  • Cross-cultural tech leadership (Japan / Global)
Previously at

Sun Microsystems·Sony·Google·Apple·LINE·Mercari

Ken Wakasa

Over 30 years of large-scale software development and technology leadership at companies including Google, Apple, LINE, Mercari, and Sony. Master's degree in Computer Science and Bachelor's degree in Engineering from the University of Tokyo. Deep technical expertise combined with executive-level strategic thinking.

Ken founded and led Mercari's Global Capability Center (GCC) in Bengaluru, India, building an engineering team from scratch. He continues to bridge Indian tech talent with opportunities across Asia through advisory roles.

As CEO of Sakurabunsha LLC, Ken provides Executive Advisory and Technical Advisory services to multiple companies and startups, also serving as External CTO where needed. He brings a unique blend of global engineering experience and cross-border leadership.

Let's Connect

Feel free to reach out for consultations, engagements, or inquiries.