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Enterprise production Full-stack engineer

Point-of-sale system for Chuan Spa branch operations — fast checkout, service packages, and Supabase-synced receipts at the counter.

Problem

Front-desk staff need a POS that stays in sync with sys-chuan without re-entering catalog data. pos-chuan is a Vite + React register tuned for touch-friendly flows, MUI + Radix components, and the same Supabase project as the management system.

Counter capabilities

Service and package selection with live totals
Supabase-backed catalog and transaction persistence
TanStack Query for resilient counter sessions
Shared type generation pipeline with sys-chuan

Checkout path

{
  "dependencies": {
    "@mui/material": "^5.15.14",
    "@supabase/supabase-js": "^2.41.1",
    "@tanstack/react-query": "^5.28.9",
    "@tanstack/react-router": "^1.26.3"
  }
}

Screenshot placeholder — service cart and payment confirmation.