22-year-old backend engineer and SRE based in Japan, with a particular interest in systems programming, infrastructure, and building reliable software. I enjoy exploring how things work at a low level and building tools from scratch.
projects:
- vas
— An x86-64 assembler written in V, capable of assembling SQLite and Lua. Featured by the official V account. - ibu — A self-hosted programming language targeting x86-64.
- watime
— A WebAssembly runtime written in WebAssembly Text Format.
experience:
2024 – Present — Software Engineer @ Gizumo
- November 2025 – Present – Developing and maintaining a healthcare management SaaS platform. Serving as Project Lead since June 2026.
- March 2025 – Present — Designed, developed, and operating batch processes for automatically submitting address-change requests to multiple financial institutions.
- December 2024 – Present — Developing and maintaining a one-stop service for electricity, gas, and water utility procedures.
- October – November 2024 — Developed an email delivery service for digital gift cards.
qualifications:
- 2026 — AWS Certified Solutions Architect – Associate
- 2013 — EIKEN Grade 2
(Test in Practical English Proficiency)