Software Consultant
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I design and ship systems software that improves developer productivity without compromising performance or reliability. With experience across operating systems, networking, compilers, and databases, I specialize in building platforms that generate correct and efficient solutions from concise specifications. These tools reduce repetitive engineering work, lower defect rates, and make complex systems easier to evolve and maintain in production.
Software Engineer at Stealth startup (2024-01 – Present)
Standalone software to analyze RF signals and communicate with drone flight controllers.
Software Engineer at Rocro Inc. and Sony Network Communications Inc. (2015-01 – 2021-12)
Custom domain-specific language for cloud billing systems.
Software Engineer at Digital Media Professionals, Inc. (2014-01 – 2015-12)
GLSL optimizer for a custom graphics processor.
Software Engineer at Sony Corporation (2014-01 – 2015-12)
CSS rule compiler for faster rendering in browsers.
Software Engineer at Franz Inc. (2004-01 – 2004-12)
Fast Perl-compatible regular expression engine for a commercial Common Lisp implementation.
Software Engineer at Franz Inc. (2010-01 – 2013-12)
Storage engine for semantic graph database AllegroGraph.
Software Engineer at Square USA Inc. (1997-01 – 2002-12)
Flexible digital asset and workflow tracking system for CG film production.
Software Engineer at Mathematical Systems Inc. (2007-01 – 2009-12)
Large network topology mapping tool.
Software Engineer at Avatar Reality Inc. (2008-01 – 2009-12)
Natural language dialogue engine for virtual worlds.
Software Engineer at Atlantis Cyberspace Inc. (2008-01 – 2008-12)
Real-time MoCap data cleaning engine.
Software Engineer at Telemedica Co. (2012-01 – 2020-12)
Medical advisory services (an iOS app and backend services) that suggest possible diseases and recommend medical institutions from symptoms based on a statistical model.
Software Engineer at University of Hawaii (2004-01 – Present)
Data portal for global economic statistics for National Transfer Accounts project.
PhD in Engineering – University of Tokyo (1996-12)
