Hua-I Yu

Meet Hua-I

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I build and ship production web systems end to end: database design, backend, frontend, deployment. Running in production: a multi-tenant SaaS for a 16-campus tutoring chain (476 active students, 63 users, Postgres row-level security) and a 147-section education platform with 17 interactive tools, SVG and maths engines written from scratch. Fixed scope, fixed price, fixed deadline agreed up front.