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E-CommerceWeb DevelopmentCloud Infrastructure11 Weeks

Rebuilding
RetailFlow Inc.
E-Commerce at Scale

How Softnixt rebuilt a collapsing e-commerce platform in 11 weeks — tripling order capacity, cutting load time from 8.2s to 1.1s, and surviving peak Black Friday with zero downtime.

ClientRetailFlow Inc.
IndustryE-Commerce
ServicesWeb Dev + Cloud
Timeline11 Weeks
Team4 Eng + 1 Designer
+300% Order Capacity8.2s → 1.1s Load Time+64% Mobile ConversionZero Downtime MigrationBlack Friday ReadyFull AWS Auto-Scaling+300% Order Capacity8.2s → 1.1s Load Time+64% Mobile ConversionZero Downtime MigrationBlack Friday ReadyFull AWS Auto-Scaling
+300%
Order processing capacity
↑ vs. baseline
1.1s
Page load time (was 8.2s)
↓ 87% faster
+64%
Mobile conversion rate uplift
↑ uplift
0 min
Downtime during migration
✓ achieved
The Challenge

A platform collapsing
under its own success

RetailFlow had grown fast — too fast for their legacy Magento 1 platform to handle. Every sale was a gamble. Checkout failures were costing thousands daily, and the engineering team was drowning in fires instead of shipping features.

  • ✕8.2-second average page load times driving customers away before purchase
  • ✕Checkout failure rate of 12% costing thousands per day in lost revenue
  • ✕No mobile optimisation — 70% of traffic on mobile, near-zero conversion
  • ✕Legacy codebase with zero test coverage making every deploy a risk
  • ✕Database bottlenecks causing full site freezes under moderate traffic spikes
CRITICAL: Platform Stability

The legacy Magento 1 stack had zero horizontal scaling capability. A traffic spike during a flash sale would bring the entire site down within minutes. The team had no observability — when things broke, they found out from customers, not alerts.

"We were losing $4,000+ on bad checkout days. It wasn't a tech problem anymore — it was an existential one."
— Ahmed Raza, CEO · RetailFlow Inc.
PLATFORM HEALTH BEFORE SOFTNIXT
Average page load8.2 seconds
Checkout failure rate12%
Mobile conversion rate0.8%
Test coverage0%
Peak concurrent users~200 before crash
Our Solution

A ground-up rebuild,
zero compromise on quality

We rebuilt RetailFlow's entire platform on a modern, scalable stack — Next.js on the frontend, a Node.js microservices backend, Redis for caching, and AWS with full auto-scaling. Delivered in 11 weeks with zero data loss and zero downtime.

01

Architecture & Planning

Deep technical audit of the existing Magento 1 stack. Designed a microservices architecture with decoupled services for cart, catalog, orders, and payments.

System AuditArchitecture DesignDB Modeling
02

Frontend — Next.js Rebuild

Full rebuild on Next.js 14 with React Server Components, image optimisation, and edge-cached product pages. Lighthouse 95+ across all metrics.

Next.js 14TypeScriptTailwind CSS
03

Backend Microservices

Node.js microservices for cart, catalog, orders, and payments with a REST + GraphQL API gateway. Full Redis caching layer for product catalog and session data.

Node.jsGraphQLRedisPostgreSQL
04

Cloud & Zero-Downtime Migration

AWS ECS with auto-scaling, CloudFront CDN, and RDS PostgreSQL with read replicas. Parallel-run migration with full rollback capability at every stage.

AWS ECSCloudFrontRDSTerraform
SYSTEM ARCHITECTURE
CloudFront CDN + Edge Cache
↓
Next.js 14 Frontend (RSC + SSG)
↓
API Gateway (REST + GraphQL)
↓
Microservices: Cart · Orders · Catalog · Payments
↓
Redis Cache + RDS PostgreSQL (w/ Read Replicas)
↓
AWS ECS Auto-Scaling + CloudWatch Observability
Week 1–2
Discovery & Architecture
Full system audit, architecture sign-off, and database migration strategy finalized.
Week 3–6
Core Build — Backend + DB
Microservices, API gateway, Redis layer, and data migration pipeline built and tested in isolation.
Week 7–9
Frontend — Next.js Rebuild
All storefront pages, checkout flow, and admin dashboard rebuilt and deployed to staging.
Week 10–11
Migration & Go-Live
Parallel-run traffic split, zero-downtime cutover, and post-launch performance validation.
The Results

From fragile to
bulletproof in 11 weeks

Every metric improved dramatically. RetailFlow survived Black Friday on the new platform with record order volumes and zero incidents — a complete 180° from the previous year.

⚡
Performance
1.1s
Average page load time — down from 8.2s. Lighthouse score 95+.
📦
Capacity
+300%
Order processing capacity. Platform handles 3× previous peak load.
📱
Mobile
+64%
Mobile conversion rate uplift — from 0.8% to 1.31%.
✓
Reliability
0 min
Downtime during migration and throughout peak Black Friday.
“

Softnixt rebuilt our entire e-commerce platform in under 3 months. The new system handles 3× the order volume with zero downtime. They handed us full documentation, test coverage, and a system we can actually scale. Exceptional engineering team — I'll recommend them to any business serious about technology.

AR
Ahmed Raza
CEO · RetailFlow Inc.
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