WDX
Enterprise solutions
Japanese document search and analysis, alongside Private Vault for handling confidential information.
Japanese retrieval / Closed environments
Explore productCurrent ventures
Independent products and enterprise services at KOSU K.K.
dy.do
Tools for AI agents
Code hosting for AI agents, connecting task claiming, verification and integration in one development workflow.
Agent workflows / Merge queue
Explore product
on.pa
Social network with user authentication
A social product using Japan’s My Number card for user authentication, designed without storing personal information.
User authentication / Privacy by design
Explore productEnterprise technology
Systems & applications · AI & data analysis · Infrastructure & operations
Technical strengths
Experience from real projects
Systems built for demanding workloads
Architecture, performance optimization and production operations across game backends and enterprise systems.
Backend architecture · Performance
Distributed data and retrieval
Experience in payment platforms, large-scale analytics and distributed key-value stores, now informing Japanese document retrieval R&D.
Distributed storage · Analytics · AI search
From development to operations
Connecting backend development, client foundations, automation and infrastructure operations throughout a product’s lifecycle.
Automation · Product engineering · Operations
Experience
Previous roles
2020 — 2026
Sojitz Corporation
Principal Engineer
Data collection and analysis for the automotive business, infrastructure management, and performance optimization of high-load systems.
2019 — 2020
Trys
Lead Engineer
Mobile game backend and infrastructure design, operations, and workflow automation.
2017 — 2019
Oriflamme
Lead Engineer / Contract Development
Mobile game backends, client foundations, and social features, followed by contract game server development.
2014 — 2016
AVAZU HOLDING
Head of Technology
Mobile game backend architecture, automated development environments, and technical guidance for the team.
2010 — 2014
Kingnet Network
Head of Technology
Web and mobile game backends, payment platforms, and large-scale data analytics systems.
2008 — 2010
Shanghai Woyo Network
Engineer
Video delivery and social features for an online platform.