Automated Corporate Expense Management System

Smart Expense Management System
A full-stack expense management solution developed using React.js, NestJS, and Firebase. It simplifies corporate expense tracking, reimbursement, and multi-level approval workflows. Employees can easily submit claims with receipt scanning (OCR), while managers and admins can configure flexible approval hierarchies and conditional rules. The platform supports multiple currencies, integrates real-time exchange rates, and provides detailed analytics dashboards. The system ensures transparency, automation, and compliance with company reimbursement policies.

Key Features
Multi-level approval workflow (Manager → Finance → Director)
Conditional approval rules (Percentage & Specific approver logic)
OCR-based receipt scanning and auto-expense creation
Real-time currency conversion and multi-currency support
Dynamic approval routing based on role hierarchy
Firebase Authentication with role-based access control (RBAC)
Admin dashboard for company-wide expense overview
Manager panel for pending approvals and escalation
Employee dashboard with expense submission and history
Configurable approval sequences and thresholds
Comprehensive audit trails for each approval step
Push notifications and email alerts for expense status
Interactive analytics dashboard with expense trends
Responsive UI with Tailwind CSS and Framer Motion animations
Cloud storage integration for receipt management