E-commerce Platform Modernization and Multi-Region Architecture
Executive Summary
A multi-national retailer with operations across 8 countries transformed their monolithic e-commerce platform into a cloud-native microservices architecture on AWS. Through strategic modernization using Amazon EKS, DynamoDB, and multi-region deployment, DG Global Technology enabled 500% traffic capacity increase during peak shopping seasons, 35% cost reduction through automated rightsizing, and achieved deployment velocity improvement from 4 hours to 15 minutes with zero-downtime releases.
Customer Background
A leading multi-national retailer specializing in consumer electronics, home appliances, and lifestyle products. The company operates both physical retail stores and a rapidly growing e-commerce platform serving customers across Australia, New Zealand, Singapore, Malaysia, Thailand, Indonesia, Philippines, and Hong Kong.
Key Stats: 2,000+ employees, 150+ physical stores, 50,000+ daily orders, 2M+ active customers, $500M+ annual revenue
Business Challenge
The legacy monolithic e-commerce platform was struggling to meet the demands of rapid business growth and seasonal traffic spikes during major shopping events like Black Friday, Cyber Monday, and Singles' Day.
Key Challenges:
- Performance Degradation: Platform crashed twice during Black Friday 2024 due to traffic overload, resulting in $2.5M in lost revenue
- Monolithic Architecture Limitations: Single monolithic application made it impossible to scale individual components independently
- Slow Deployment Cycles: 4-hour deployment windows requiring full site downtime every 6-8 weeks for updates
- Lack of Disaster Recovery: No cross-region failover capability, exposing business to single-region outage risk
- High Infrastructure Costs: Over-provisioned on-premises infrastructure maintained year-round for peak seasonal capacity
- Geographic Performance Issues: Customers in Southeast Asia experiencing 5-8 second page load times
AWS Solution
DG Global Technology designed and implemented a modern cloud-native architecture using AWS managed services, decomposing the monolithic application into 45 domain-driven microservices deployed on Amazon EKS with comprehensive observability, auto-scaling, and multi-region disaster recovery.
AWS Services Utilized
Amazon EKS
Orchestrated 45 containerized microservices with automatic scaling, self-healing, and rolling updates
Amazon DynamoDB
High-performance NoSQL database for product catalog, shopping carts, and sessions with global tables
Amazon RDS PostgreSQL
Transactional database for order management with Multi-AZ deployment and read replicas
AWS Lambda
Serverless functions for event-driven workflows including order processing and inventory updates
Amazon CloudFront
Global CDN for static assets and dynamic content caching with 220+ edge locations
Amazon ElastiCache
In-memory caching for session management and product recommendations
Architecture Highlights
- Domain-Driven Design: 45 microservices organized by business domain (catalog, cart, checkout, inventory, customer, order, payment)
- Multi-Region Active-Passive: Primary in Sydney with DR in Singapore, automatic failover with < 5 minute RTO
- Event-Driven Architecture: Asynchronous communication using SNS/SQS for loose coupling and resilience
- Auto-Scaling Strategy: Horizontal pod autoscaling based on CPU, memory, and custom metrics
Implementation Details
Timeline: 8 months
Team Size: 12 engineers (6 DG Global Technology, 6 customer internal team)
Migration Strategy: Strangler Fig pattern - gradually replacing monolith components
Key Implementation Phases
- Discovery & Assessment: Application dependency mapping, AWS Well-Architected Framework review, identified 45 microservice boundaries
- Architecture Design: Designed target microservices architecture, established Infrastructure as Code with Terraform
- Foundation & DevOps: Established multi-account structure, provisioned EKS clusters, implemented GitOps-based CI/CD
- Microservices Migration: Two-wave approach starting with non-critical services, then critical transactional services
- Multi-Region Setup: Deployed DR environment in Singapore, configured DynamoDB global tables, conducted DR drill
Results and Benefits
500%
Traffic Capacity Increase
Quantifiable Results
- Scalability Achievement: Successfully handled 500% traffic increase during Black Friday 2025 (400K to 2M concurrent users) with zero downtime
- Cost Reduction: 35% reduction in infrastructure costs ($1.8M annual savings) through EKS Spot Instances and autoscaling
- Deployment Velocity: Reduced from 4 hours with downtime to 15 minutes with zero-downtime blue-green deployments
- Performance Improvement: 70% reduction in page load times (from 6-8 seconds to 1.8-2.2 seconds globally)
- Release Frequency: Increased from 6-week cycles to continuous deployment (20+ deployments per day)
- Reliability: Achieved 99.98% uptime SLA with multi-region failover < 5 minute RTO
Business Impact
- Revenue Growth: 28% increase in online revenue ($140M additional revenue) due to improved platform performance
- Conversion Rate: Improved from 2.1% to 3.4% due to faster page loads and streamlined checkout
- Customer Satisfaction: CSAT increased from 72% to 88% due to reliable shopping experience
- Black Friday Success: Processed record 180,000 orders during Black Friday 2025 without any outages
- Market Expansion: Successfully launched in 2 new countries (Vietnam and Taiwan)
DG Global Technology transformed our e-commerce platform from a scaling bottleneck into a competitive advantage. The migration to AWS with EKS and microservices not only solved our immediate Black Friday capacity challenges, but fundamentally changed how we develop and deploy software. We went from quarterly releases with hours of downtime to deploying 20+ times per day with zero downtime. The 35% cost reduction combined with 500% scalability improvement has delivered exceptional ROI.
— Sarah Williams, Chief Information Officer
About DG Global Technology
DG Global Technology is an AWS Advanced Consulting Partner and Managed Service Partner specializing in enterprise cloud transformation across ASEAN markets. With 50+ AWS certifications and 5+ years of partnership experience, we deliver comprehensive managed services including 24/7 monitoring, proactive optimization, security management, and cost governance.