Software engineer. Payments is the through-line — card processing, platforms, and the boring work that keeps money safe. Fukuoka, Japan.
I work on payment safety — fraud, processing, the systems nobody notices until they fail.
Mar 2023 — Present
Apr 2026 — Present
Tech Lead, Anti-Fraud
Anti-fraud engineering. Card fraud, transaction safety.
Nov 2024 — Mar 2026
Engineering Manager, Anti-Fraud
Built the team and the product from scratch.
Sep 2023 — Oct 2024
Software Engineer, Processor
Processing system. Preventing fraudulent use of corporate credit cards.
Mar 2023 — Aug 2023
Software Engineer
Web application, Slack application, and related product work.
Apr 2023 — Jan 2024
Backend Engineer (side job)
Web application.
Apr 2019 — Feb 2023
Software Engineer
Payment platform: development, maintenance, operations.
May 2021 — Jan 2022
Backend Engineer (side job)
Application development.
Sep 2018
Internship
Android application.
Sep 2017
Internship
Embedded system.
Apr 2017 — Mar 2019
M.S. Electrical and Computer Engineering
Apr 2013 — Mar 2017
B.S. Computer Science and Engineering