End-to-end commerce architecture processing 10,000 orders/day with 99.9% uptime
Mars Rejects scaled from a local streetwear label to a national D2C brand in 18 months. Their Shopify Plus store was breaking under load and their fulfilment was manual. Durrani Tech re-architected their technology stack and marketing engine end to end.
Client
Mars Rejects
Industry
E-commerce / Fashion
Services
Duration
8 months
10k+
orders per day, up from 400
99.9%
uptime maintained through high-traffic product drops
4.1×
overall revenue growth in 12 months
₹0
revenue lost to site downtime since relaunch
The Challenge
During a major product drop, Mars Rejects' store crashed under 15,000 concurrent sessions. Checkout failures cost them an estimated ₹45L in a single afternoon. Their fulfilment team was manually processing orders from a spreadsheet. Retention marketing was non-existent.
Our Approach
We conducted a full architecture review and identified three critical failure points: server capacity, database query performance, and payment gateway configuration. We architected a headless commerce stack on Vercel + Shopify + AWS, designed for drop-day traffic patterns. In parallel, we built a Klaviyo retention programme and performance marketing funnel.
The Solution
Delivered a headless commerce stack capable of handling 50,000+ concurrent sessions. Integrated automated fulfilment via ShipBob API. Built a complete acquisition-to-retention marketing system. Site now processes 10,000+ orders on regular days and 80,000+ on drop days with zero downtime.
Results.
10k+
orders per day, up from 400
99.9%
uptime maintained through high-traffic product drops
4.1×
overall revenue growth in 12 months
₹0
revenue lost to site downtime since relaunch
Stats are representative of outcomes achieved.