Featured Project
SwingPay
Backend-driven fintech system simulating real transaction flows, role-based control, and audit logging.
What It Does
- Users manage balances and transfer funds
- Every transaction is validated and logged
- Admins control balances with full audit visibility
Engineering Decisions
- Session-based auth instead of JWT for control and simplicity
- Every balance change logged as a transaction (no silent updates)
- Role-based middleware for admin/user separation
- Transfer validation enforced server-side
System Design
- Wallet system with credit, debit, transfer flows
- Dual transaction logging (sender + receiver)
- Admin-controlled balance adjustments
- Full audit trail for all admin actions
Tech Stack
Node.js · Express · MongoDB · EJS
Key Features
- Wallet system (credit, debit, transfer)
- Transaction history with filters
- Referral reward system ($10 per signup)
- Admin dashboard with metrics
- Audit logging for all actions
What This Proves
- Built full MVC backend architecture
- Designed transaction-safe system (no silent state changes)
- Implemented role-based access control
- Structured codebase for scalability