Projects
Selected work
Dr.Well-B
Technical Lead · Backend · Cloud Infrastructure
Multi-service platform for doctors and dentists in Japan: verified membership with approvals, profile-targeted ads, dynamic surveys, job search and batch reward points.
TaxPal
Technical Lead · Backend
Sales analytics for an accounting-services brokerage in Japan: cases, KPI targets against actuals, rankings and pipeline conversion by staff member, team and company.
Waroku Hospital Karte
Technical Lead · Frontend
A cloud medical record and clinical workflow platform for psychiatric hospitals in Japan: patient charts, multi-step clinical orders, wards, beds, nursing and schedules.
Waroku Home-Visit Nursing
Project Leader · Technical Lead · Frontend
A cloud platform for home-visit nursing in Japan: patients and their homes, case records and handover, nursing orders and plans, visit schedules, reports and assessments.
GO Inc
Technical Lead
An ecosystem of 4 websites for the GO taxi brand — a 5-language product site, ATS-connected recruiting, a support center and corporate IR, with Slack-moderated publishing on Google Cloud + AWS.
Wonderia
Technical Lead
The multilingual brand website of Wonderia YOKOHAMA (wonderia.jp) — 4 languages, marketing self-publishing via Contentful, running serverless on Google Cloud.
Yokohama Stadium
Technical Lead
The official website of Yokohama Stadium (Hamasta) with a live play-by-play system — static-first on a CDN, event-driven serverless pipeline on Google Cloud and AWS.
Corporate IR Platform
Technical Lead
A corporate and IR website platform for a listed Japanese company — a fully self-built CMS, a Firestore-to-BigQuery data pipeline, and Google Cloud infrastructure behind a WAF.
Fullswing
Technical Lead
Fullswing, an article-based content site on a modern Nuxt stack in a Turborepo monorepo — Contentful images served through Akamai CDN with automatic cache purging on every publish.
AI Brand Site
Technical Lead
The AI brand website of a Japanese technology group — WebGL visuals, 15 Contentful content types, Slack-based content approval, and modernisation of a system running for years.
AI Link
Technical Lead
AI Link's bilingual Japanese–English corporate website for B2B AI services — Next.js fully static on a CDN, a contact form with layered spam protection, and near-zero operating cost.
BALLPARK Xmas YOKOHAMA KANNAI
Technical Lead
The BALLPARK Xmas YOKOHAMA KANNAI campaign site — Instagram integration with a fully automated token lifecycle, and Contentful content rendered per request instead of rebuilding the site.
Beacon-based Content Delivery Platform
Backend · Cloud Infrastructure · Production Operations
A multi-tenant BLE/iBeacon advertising platform that recorded 761,921 device connections in a single hour while matching campaigns and delivering context-aware content.