Architected a multi-vendor headless commerce platform with Next.js 15, sub-second search indexing, and unified multi-currency checkout.
1. The Engineering Challenge
The client was experiencing 4.2-second page load times on legacy infrastructure and an abandoned cart rate exceeding 72% on mobile devices during flash sales.
2. The Architectural Solution
Engineered an ultra-fast Next.js 15 frontend deployed on Edge nodes with server-side rendering, integrated Razorpay/Stripe one-click checkout, and implemented instant algorithmic search indexing across 50,000+ SKUs.
3. Measured Real-World Impact
- 340% increase in mobile conversion rate within 60 days of launch
- 0.6s Largest Contentful Paint (LCP) performance benchmark achieved globally
- Zero downtime across flash sale traffic spikes of 25,000 concurrent sessions
- Automated inventory syncing across 5 physical retail warehouses with sub-second accuracy
