Building the Future.

Behemoth's game studio: certified slot engines, AI asset pipelines and an LLM generator that turns a brief into a playable game.

A multi-role billing platform built as a monorepo. Separate Next.js frontends for owner, issuer, customer and admin share a Ruby on Rails GraphQL backend.

Multi-tenant B2B SaaS that digitizes Japanese shareholder-benefit (株主優待) programs: a point-based rewards portal with per-company branding, five role-based portals, and a telephone (IVR) redemption channel — coexisting with a live legacy system on a shared database.

Full e-commerce and customer communication platform built around the LINE ecosystem. Multi-tenant OEM deployment with white-label customization, AI chatbot support, and polyglot microservices architecture.

A multi-domain management system that enables customizable landing pages for sales optimization, along with order management and integrations with multiple shipping providers and payment methods.

A job matching platform for the construction industry, featuring advanced filtering and real-time notifications.