Senior software engineer based in Osaka, Japan. 10 years building across the stack, from IoT firmware to cloud platforms to AI-powered apps. Shipped products in aeronautics, retail, social media, and cloud infrastructure serving millions of users.
## notes
## posts
- Building an open-source usage guard for Cloudflare Workers
- Web application penetration testing checklist
- Self-hosting Immich with Traefik and Coolify
- How to try Neovim distros without messing up your config
- Install SearXNG on your Nginx server
## experience
Shipped LLM-powered features and automated email workflows on a p2p learning platform. Cut CI/CD pipeline time by 70%.
Core open-source contributor to OVHCloud Manager. Built the latest email product micro frontend from scratch (96 Web Vitals score, highest-performing app on the platform). Migrated legacy AngularJS apps to React and contributed to shared libraries.
Design system and component library from scratch for a social platform serving millions of users. Led the Vue-to-React frontend migration and contributed to the PHP monolith-to-Go microservices rewrite.
Maintained the dev tooling for the entire engineering department. Rewrote the backend starter kit (TSOA/Express to NestJS/Fastify), built CLI project generators, and authored multi-cloud CI/CD pipelines. Shipped 3 internal retail apps.
IoT asset tracking for airports and logistics. Built a React Native app in ReasonML. Designed and implemented on-device geofencing (backend, frontend, protocol), hardware configuration tooling, and custom BLE/GSM protocols for firmware communication.
Big Data engineering on the Airkog knowledge management platform. Built an enterprise-wide search engine, predictive risk dashboards with d3.js, and a centralized Keycloak SSO auth server.
Android native app for voice-controlled home automation. IoT web apps for fire detection cameras. Internal tooling in C#, Python, and Go.