Projects
All built solo — product thinking, code, deployment, and operations included.
AutoTax — Tax Calculator for Small Businesses
A web service for sole proprietors: forward tax computation, reverse cost inference ("what's the maximum reasonable cost for my target tax?"), and an AI-powered tax-policy Q&A. Every release is guarded by a 21-check regression suite — tax math is not a place for silent errors.
Full loop verified in production: forward ↔ reverse calculations close with zero error.
Resume Co-Pilot — AI Resume Workbench
Three-pane workbench: form editor, live A4 preview, and an AI advisor. STAR-method rewriting, ATS match scoring, one-click JD tailoring via an LLM function-calling agent, full EN⇄CN translation, and PDF/DOCX multimodal import. Includes an anti-fabrication guard — the AI never invents your numbers.
6,800 lines reviewed line-by-line before the latest release; photo data never leaves the server to the AI.
Benxinji — Wellness & Self-Insight App
A cross-platform wellness app rooted in Eastern culture, with a wabi-sabi minimalist design language. Built with Flutter for iOS + Android, complete with subscriptions and in-app purchases on both stores. It evolved from a WeChat Mini Program I shipped earlier — I've walked the Mini-Program-to-native-app road myself.
1,300+ automated tests passing. Full China compliance handled: ICP filing, store review, copyright registration.
GoGoWorkout — AI Fitness Coach
An AI coach where the interface itself is AI-generated: the backend streams structured UI schemas and the client assembles them into native components in real time (GenUI). Photo-based calorie recognition, AI visual posture assessment, bilingual exercise search across 1,300+ movements with 95%+ match rate.
Validated end-to-end: onboarding → AI posture assessment → personalized 7-day plan → adaptive coaching chat.
Family Guard — Remote Phone Assistance for Elderly Users
When an elderly parent gets a suspicious call or a scary payment prompt, one tap calls their family; the adult child sees the phone screen live, draws annotations, and talks them through it. Designed as decision support for families, with a privacy-first, watch-only first phase.
The two hardest iOS capabilities — picture-in-picture overlay and screen-capture extension — already validated on device.