Project Title: Backend Developer for Social + Group-Buy App ⸻ Project Description: We’re building APP, a social group-buy platform The app helps users discover local activities, form groups, and enjoy discounted prices together. The frontend (React / Next.js) is already completed in Cursor. We now need an experienced backend developer to build and deploy the backend that powers user accounts, group formation, chat ⸻ Project Scope Core modules to build: 1. User management: • Email / Google login (OAuth2), user profile, password reset. Profile: read,edit the info, upload pictures 2. Activities module: • CRUD APIs for activities, search & filter by category, location, date. 3. Group formation & matchmaking: • Create / join group logic, close when full, optional interest-based match. 4. Chat system: • Real-time group chat using supabase 6. Discount menu display 7. Admin dashboard: • View users, activities, manage 8. Notification system: • Email / push notifications for group updates and reminders.