Summary: A national retail chain with $50M in annual online revenue needed to migrate its legacy on-premise e-commerce platform to AWS. The 24-month migration timeline was threatening to miss a critical holiday season deadline, and their internal team of 12 engineers lacked deep AWS and containerization expertise.
Expedite Software Services partnered with the client to augment their team with 25 AWS-certified engineers specializing in cloud migration, microservices re-architecture, and DevOps automation — compressing the migration timeline and ensuring zero downtime during the transition.
Add 25 cloud-specialized engineers to ensure completion before the holiday sales peak.
Bridge critical skill gaps the internal 12-person team lacked for cloud-native re-architecture.
Eliminate permanent hiring costs for specialized cloud engineers not needed at full capacity post-migration.
Maintain 99.99% availability throughout the entire transition period for the $50M e-commerce platform.
Ensure the internal team can independently manage AWS infrastructure post-engagement.
Break down a 500K+ line Java monolith into 35+ cloud-native microservices with zero data loss.
AWS (EKS, EC2, RDS Aurora, ElastiCache, S3, CloudFront)
Docker, Kubernetes (EKS), Helm charts, Istio service mesh
Terraform modules, AWS CDK, Ansible
GitHub Actions, ArgoCD, Spinnaker
Java (Spring Boot), Node.js, React.js, Next.js
Datadog, Prometheus, Grafana, PagerDuty, ELK Stack
Internal team had no Kubernetes expertise and limited AWS knowledge — 80% of migration tasks required cloud-native skills.
Legacy platform was a 500K+ line Java monolith with 8 years of technical debt requiring decomposition into 35+ microservices.
Missing the November holiday deadline would cost $8M+ in lost sales from performance issues on the legacy platform during peak traffic.
12M+ customer records and 5M+ product SKUs needed migration with zero data loss and minimal service interruption.
25 engineers with AWS Solutions Architect and DevOps Professional certifications, sourced within 3 weeks.
5 specialized pods (Infrastructure, Microservices, Data Migration, DevOps, Performance) running parallel sprints.
Incrementally replacing monolith components with microservices while keeping the legacy system operational.
Regression, load, and chaos engineering test suites validating each migrated service before cutover.
12-week program with weekly workshops, pair programming rotations, and documentation sprints.
Gradual reduction from 25 to 10 to 0 engineers over 4 months, ensuring stability during handoff.
Integrated into existing Agile workflows and productive by end of Week 2.
Full migration completed in 18 months vs. the original 24-month plan.
Flexible ramp-down eliminated post-migration overhead compared to permanent hiring.
New architecture contributed to a 15% increase in holiday conversion rates.
All 35 microservices migrated with 12M+ customer records at 100% data integrity.
Internal team independently managing AWS infrastructure within 90 days of engagement end.