E-Commerce Platform Overhaul

The existing platform was built on a PHP monolith from 2015. It had no proper API layer, vendor management was handled through spreadsheets, and every new feature required weeks of risky modifications to core files. The client needed a complete rebuild without losing existing product data, vendor accounts, or SEO rankings.

Key challenges included: migrating over 18,000 SKUs and 3,200 customer accounts with zero data loss, maintaining URL structures to preserve Google rankings, building a real-time inventory sync between vendor warehouses and the storefront, and launching with a hard deadline tied to a peak sales season.

DataVonix architected a modern solution using ASP.NET Core 8 for the backend API, Next.js 14 for the storefront frontend, and SQL Server with Redis caching for data persistence and performance. The multi-vendor architecture was built around a clean domain model separating vendor accounts, product catalogues, orders, and fulfilment workflows.

The system follows a clean microservices-inspired architecture with bounded contexts for catalogue management, order processing, payments, notifications, and vendor administration. An API gateway routes requests to the appropriate services, with JWT authentication and role-based access control governing vendor vs. admin vs. customer permissions.

The frontend uses server-side rendering for product pages (for SEO and fast first paint) and client-side rendering for the cart and checkout flow (for interactivity). Redis is used for session management, rate limiting, and caching frequently accessed product listings.