Selected work
Engineering case studies: what the problem was, what I owned, what shipped. Two are published; the JFSA licence writeup is in progress.
Project Revival: my scope inside FTX Japan's customer asset return
In February 2023, FTX Japan reopened customer withdrawals and returned about US$140M, the first FTX entity to give customers their funds back. My scope inside that flow: balance verification, and identity matching across the FTX and Liquid ledgers.
Shipping Liquid's JFSA exchange licence: reporting architecture
How the nightly regulatory reporting for Japan's first FSA-licensed crypto exchange was designed and built in Rails and Sidekiq, after two outsourced attempts had failed. The system stayed under audit for the next five years.
This blog: Rails 8, SQLite in production, shared VPS
A personal blog that runs on Rails 8 with SQLite in production, deployed with Kamal, sharing one small VPS with a live-money trading bot via cgroup budgets.
A live-money trading bot
Closed-source (the strategy is proprietary). I'm happy to walk through the architecture (strategy composition, deterministic gating, backtest-before-live, position lifecycle, reconciliation) and the failure modes of trading against a real exchange, in conversation.