Cloud Infrastructure Migration with 99.99% Uptime
Complete migration of legacy systems to AWS with infrastructure-as-code and zero-downtime cutover.
Case study breakdown
The summary
A product company running on aging on-prem hardware needed a controlled move to AWS without disrupting revenue-critical workloads. CoderVu planned and executed the migration with Terraform, container orchestration, and runbooks the internal team could operate.
The challenge
Downtime was unacceptable during peak trading windows. Dependencies between services were poorly documented, and the existing deployment process was manual and error-prone. Cost visibility and autoscaling were mandatory outcomes, not nice-to-haves.
- Team Size
- 4 specialists
- Engagement Length
- 4 months
- Engagement Model
- Migration workstream
The Solution
We mapped dependencies, containerized services with Docker, orchestrated on Kubernetes, and codified environments in Terraform. Blue-green cutovers, automated health checks, and centralized logging gave operators confidence before each production switch.
“They treated migration like a product launch — runbooks, rehearsals, and rollback plans we still use today.”
The outcome
Infrastructure costs fell 40% post-migration while uptime reached 99.99%. The four-month program completed on schedule with no unplanned customer-facing outages during cutover weekends.
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