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Cloud Migration for Logistics Platform
Migrated 40+ microservices from on-prem to EKS with zero customer-facing downtime.
Challenge
40+ Java/Go microservices running on bare-metal Kubernetes with manual capacity planning. Scaling was slow (3 weeks for new nodes), and the team had no consistent observability or cost visibility.
Approach
- 6-week discovery: built a service inventory, dependency graph, and TCO model
- Established a multi-account AWS landing zone with Control Tower
- Wrote reusable Terraform modules for EKS, RDS, and networking
- Phased migration over 4 months: stateless services first, then stateful, then batch jobs
Outcome
- All 40+ services on EKS within budget and on schedule
- P95 latency improved 22% from better networking and instance types
- Monthly run cost 18% lower than the on-prem equivalent (incl. AWS premium)
- New service deployment time: 3 weeks → 1 day