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E-commerce Cloud Migration

Transforming a growing e-commerce platform from legacy on-premise infrastructure to a scalable, cost-effective AWS cloud architecture.

Legacy Infrastructure Problems

The client's e-commerce platform was running on aging on-premise servers that couldn't handle traffic spikes during sales events. They faced:

  • Server crashes during peak traffic periods
  • High infrastructure costs with underutilized capacity
  • No disaster recovery or backup strategy
  • Manual deployments taking hours

Project Details

Duration: 3 months

Team: 2 Cloud architects, 1 DevOps engineer

Industry: E-commerce / Retail


Tech Stack

Java Spring PostgreSQL React GraphQL

Infrastructure

AWS EKS Amazon RDS ElastiCache CloudFront

DevOps & CI/CD

Kubernetes Helm ArgoCD Jenkins

Security

AWS WAF AWS Shield Secrets Manager

Cloud-Native Architecture

☸️ Amazon EKS Cluster

Managed Kubernetes with auto-scaling node groups. HPA for pod scaling during traffic spikes. Spot instances for 70% compute cost savings.

πŸ—„οΈ Amazon RDS PostgreSQL

Multi-AZ deployment with read replicas. Automated backups with 35-day retention. Performance Insights for query optimization.

πŸš€ ArgoCD GitOps

Declarative GitOps deployments with ArgoCD. Helm charts for application packaging. Automatic sync and rollback capabilities.

🌐 CloudFront + S3

Global CDN with 400+ edge locations. Origin Shield for cache optimization. S3 for static assets with versioning and lifecycle policies.

πŸ›‘οΈ AWS Security Stack

AWS WAF with managed rule groups. AWS Shield Advanced for DDoS protection. Secrets Manager for credential rotation. IAM roles with least privilege.

πŸ“Š Prometheus + Grafana

Full observability stack with Prometheus metrics, Grafana dashboards, and Loki for log aggregation. PagerDuty integration for alerting.

Measurable Impact

40%
Cost Reduction
10x
Scalability
Zero
Downtime Migration
60%
Faster Page Loads

Before Migration

  • Monthly hosting cost: $5,000
  • Max concurrent users: 500
  • Deployment time: 4+ hours
  • Recovery time: Unknown

After Migration

  • Monthly hosting cost: $3,000
  • Max concurrent users: 5,000+
  • Deployment time: 10 minutes
  • Recovery time: <15 minutes

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