A multi-region AWS infrastructure handling 10M+ daily transactions with 99.99% uptime — engineered for failure-mode resilience and a 38% reduction in steady-state cloud spend.
The client's existing infrastructure was a single-region monolith on borrowed time. A 6-hour outage in late 2024 cost them an estimated $4.2M in lost transaction volume and a marquee enterprise customer.
We re-architected the entire stack onto a multi-region AWS topology with active-active failover, infrastructure-as-code from day zero, and observability that surfaces problems before customers feel them.
4-week assessment of every workload, dependency, and SLA. Output: a 200-line risk-prioritized migration backlog.
Multi-account AWS Org, Terraform monorepo, OIDC for CI, baseline guardrails — the bedrock of everything that came after.
Workload by workload, behind feature flags. Each migration validated by synthetic transactions before traffic shift.
Active-active in us-east-1 + eu-west-1, with read replicas in ap-south-1. 60-second auto-failover validated quarterly.
Right-sizing, savings plans, Graviton migration where viable, S3 intelligent tiering — 38% steady-state spend reduction.