I build and repair focused web software with React and TypeScript: internal tools, API integrations, workflow automation, and small production fixes.
- React / TypeScript Bug Fix Lab — three production-style UI failures reproduced and fixed with five behavior-level regression tests, strict type checking, and a verified production build.
- Tattoo Convention Operations System — a bilingual React/TypeScript operations prototype for studios coordinating conventions, artists, appointments, travel, orders, and finances.
- A-share Shortline Ledger — a Python-based public watchlist and backtesting dashboard for short-horizon A-share research.
- BubblePop — a Swift project.
- Reproducing and fixing one bounded React/TypeScript defect
- REST API integration and data-flow debugging
- Build, dependency, configuration, and deployment corrections
- Small workflow automations and internal tools
I prefer fixed scopes, funded milestones, testable acceptance criteria, and concise handoffs. I do not accept unpaid test work or make unverifiable performance claims.
For a first engagement, I offer a fixed-scope repair for one reproducible React/TypeScript issue, including verification against the project's existing checks and a pull-request handoff.
Contact: [email protected]