yasu@tng.coop
+81 90 6523 2640
Yugawara, Kanagawa, Japan
Japanese (Native) · English (Fluent)
Summary
A software developer and worker cooperative leader doing what we simply need to do with AI. And what is that? To bring a vibrant, flourishing society into this world as tangibly and down-to-earth as we can. If you are a Christian like me, you might call it the Kingdom of God, but any word will do—and we can discover that word together.
As a worker cooperative pioneer and bootstrapper practicing "learning by doing", I work to establish IT worker cooperatives firmly rooted in our society—democratic, one-person-one-vote organizations officially recognized under Japan's Worker Cooperative Act implemented in 2022.
Core Skills & Role
True Generalist & AI Orchestrator: I am no expert in anything. Unconstrained by any specific language, framework, or operating system, I focus on the fundamental principles of how computers work. Deeply immersed in AI since the inception of our cooperative over the past 3 years, my primary role is AI orchestration—directing and integrating AI for software and systems development to solve real-world problems.
Website development and support for other cooperatives.
Administrative automation services for Christian churches.
Co-developing the website renewal and ongoing development for the Kanagawa Branch of the Japanese Workers’ Co-operative Union (JWCU) (https://kanagawa.jwcc.coop).
Playwright-based E2E test automation consulting.
Contributed to web application development for a US-based startup.
Built a Google Sheets operations application for a client cooperative to streamline daily work and support worker autonomy (Oct 2022).
Maintained and improved a Windows typing‑assistance application, enhancing user accessibility (Jan–Dec 2023).
Contributed to software development support for a cybersecurity education platform (Jan–Jun 2024; Bulgaria/Israel).
Exploring the development of focused Generative AI bots tailored to support the unique needs of worker cooperatives and empower human labor.
Setup and integration of VOIP / IP PBX telephone systems for cooperatives and SMBs.
Development of IT systems and data analytics platforms for healthcare and nursing facilities (e.g., KKSystem, HealthMan, CareMetrics).
Civic tech and open data initiatives, promoting community-driven technology projects in local regions (e.g., Yugawara, Odawara).
Cooperative business development around mathematical education services, including the development of logic/math software (e.g., Toy-Hauptsatz) and hosting local study sessions.
Full-Time Corporate Roles
Simplex Inc. (Financial Systems) — DeveloperOct 2017 – Oct 2022
Built a next‑generation risk‑reporting system, ensuring clear, truthful financial data visibility (Oct 2017 – Mar 2020; ~30‑person team).
Migrated legacy systems to modern, scalable architectures for an insurance client (Jan 2021 – Jun 2021; ~15‑person team).
Improved the performance and stability of a major securities firm’s risk system, significantly reducing system latency and operator stress (Jun 2021 – Oct 2022; ~10‑person team).
Merrill Lynch Japan Securities (Bank of America) — Assistant Vice President, Risk/TradingMay 2007 – Jul 2017
Developed a JEPX‑connected power‑trading system (May 2007 – Dec 2008).
Built and operated enterprise risk‑reporting systems: migrated legacy spreadsheet models and end-user computing systems to automated, scalable applications to handle regulatory, daily, and monthly reporting, reducing manual toil and preventing burnout (Dec 2008 – Jul 2017).
FX Alliance — Application Support (FX Trading)Apr 2005 – Feb 2007
Supported release operations and platform stability; created scripted diagnostics to support operators and maintain reliable trading environments.
Barclays Capital (Singapore) — Systems Developer (FX & Commodities)Mar 2004 – Mar 2005
Developed and maintained robust risk and trading systems.
Bank One — Computer Software DeveloperMar 2003 – Feb 2004
Built internal web systems and maintained daily reporting; served on a 3‑person help desk at the Tokyo branch (~100 staff), directly supporting colleagues' daily technological needs.
Aineo Networks — Computer Software DeveloperJan 2002 – Jan 2003
Developed corporate systems and built automated testing frameworks.
ValueCommerce — Computer Software DeveloperOct 2000 – Oct 2001
Developed online marketing and e‑commerce systems.
Education
Ibaraki University — B.A., Faculty of Education, Information Culture Program (Mar 2000)