Realtime 3D graphics specialist with a 25+ year demonstrated history of released titles in the consumer games industry. Skilled in C++17, CPU/GPU parallelization, optimization and performance, scenegraphs, OpenGL, GLES, DirectX, GLSL/HLSL shaders, 3D math, and cross-platform API design.

Internet engineering professional with strong focus on security, network hardware and VPC infrastructure, serverless cloud technologies and Docker containers, including development in TypeScript, PHP and Python. Public speaker at AWS User Groups and other local events, organizer for JAWS-UG GameTech and JAWS-UG Sapporo branches, as well as Tokyo Demo Fest, and official AWS Community Builder since 2020. Native English speaker and fluent in Japanese.

• Country Manager & Principal Engineer, Japan

  SapWorks

  Sep 2025 - Present 1 year

  Sapporo, Hokkaido, Japan

• Technical Director / CEO

  Cold Fusion, Inc.

  Dec 2012 - Present 13 years 9 months

  Sapporo, Hokkaido, Japan

• VR Graphics Engineer

  Sanzaru Games

  Mar 2015 - Mar 2016 1 year 1 month

  Remote

• AWS Backend 3D Graphics Engineer

  Animoto

  Jan 2013 - Mar 2015 2 years 3 months

  Remote

• Audio Encoding/Modulation Engineer

  Fieldsystem

  Jun 2011 - Jan 2013 1 year 8 months

  Okinawa, Okinawa, Japan

• 3D/GIS System Engineer

  Okinawa Mapping System

  Aug 2005 - Mar 2011 5 years 8 months

  Okinawa, Okinawa, Japan

• GameCube 3D Engine Programmer

  Genius Sonority

  Sep 2002 - May 2005 2 years 9 months

  Tokyo, Japan

• PlayStation 2 Engine Programmer

  AiCube Co., Ltd.

  2000 - 2001 1 year

• PlayStation Engine Programmer

  Z-Axis

  Jul 1998 - Apr 2000 1 year 10 months

  San Mateo

• Main Organzier

  Tokyo Demo Fest

  2012 - Present 14 years

  Science and Technology

  Main organizer for Tokyo Demo Fest, a demoparty held annually in Tokyo. Responsible for internet infrastructure, including website, user registration, ticket purchases with PayPal, and setup of the routers and WiFi access points to provide internet access to visitors during the duration of the party. Also responsible for running cables and PC setup for controlling the projector and sound system during the party.