Full-stack engineer & CTO who ships products end-to-end β from ad operations and SEO to system architecture and cinema-grade 3D rendering on the web.
Languages
Frontend
Mobile
3D / WebGL / AR
Backend
CMS / E-Commerce
Infrastructure & Data
AI
Auth / Payments
Testing / Quality
- π Manufacturing SaaS (0β1) β Next.js 16 + Rails 7 + Strapi 5 + Three.js. Hierarchical pricing engine, 8-stage order workflow, and a 3D product viewer that recreates Apple-style cinema-grade lighting on the web (Three-Point Lighting + ACESFilmic tone mapping + Lightformer environment lighting)
- π WebGL Nail Art Preview + AR β Photorealistic 3D hand rendering entirely in the browser using PBR materials, a custom Canvas 2D texture compositing pipeline, and ink-drip fluid animation (605-line HandModel). AR hand tracking via MediaPipe + ONNX Runtime Web
- π° Headless CMS Platform β Next.js + Strapi 5 with Container/Presenter architecture, draft mode, cache-tag revalidation, and full SEO suite
- π§ LLM Resume Parsing β AI-powered resume analysis integrated into a recruitment SaaS Rails API
- π§βπ€βπ§ Internal HR System (0β1) β Rails-based candidate scoring, interview pipeline, and automated fee calculation
- π 20+ Landing Pages in One Month β Rapid page production for a customer success platform
- π 10,000+ commits across 45 repos in the 2025β2026 period
3D
- Mesh Editor on Browser β Edit 3D mesh vertices and faces directly in the browser
- Lighting Editor on Browser β A no-code tool that lets non-engineers set up Apple-style cinema lighting with a simple GUI, making cinematic 3D product shots accessible to anyone
Web Services
- Online Oripa Platform β Full-stack online trading card lottery platform (Nuxt 3 + Prisma + PostgreSQL + Pay.jp + GCP Cloud Run) with product/SKU management, pack system, point economy, payment, and admin panel
- Diagnostic Builder β No-code quiz / diagnostic tool builder with branching logic and score-based results
- Eye-Catch Generator β Browser-based thumbnail image editor for media and blog content, with Stripe subscription billing
10+ years building web products in Tokyo β from WordPress sites to full-stack SaaS, mobile apps, 3D/AR experiences, and AI-powered platforms. As CTO at two companies and Head of Marketing at another, I've led teams, launched new business lines, and driven measurable growth (400% ad ROI, 2.5x GMV, JPY 9M/mo media revenue). Currently working as a freelance full-stack engineer while co-running an AI-focused company as CTO.
Last updated: April 2026




