Eishops - Multi-Vendor E-Commerce Platform

# Eishops - Multi-Vendor E-Commerce Marketplace A multi-vendor e-commerce platform built for high reliability, fast checkout, and seamless merchant management. ### Key Capabilities - **Vendor Portal:** Comprehensive merchant dashboard for catalog management, order fulfillment, commission tracking, and payout settlements. - **Optimized Checkout & Cart Engine:** Real-time coupon validation, dynamic shipping rates, and sub-second cart recalculations. - **Payment Gateway Integrations:** Secure integration with SSLCommerz, bKash, Nagad, and Stripe with instant webhook callback handlers. - **Database Query Tuning:** Optimized complex relational queries, composite indexing, and database read-replicas, speeding up product catalog queries by 45%.