E-commerce & Retail
E-commerce retailer cuts AWS spend by 40%
A fast-growing e-commerce platform needed to reverse AWS bill growth without slowing releases during peak shopping seasons.
Challenge
Traffic spikes left oversized EC2 and RDS footprints running year-round. Untagged resources and unused snapshots hid waste. Finance lacked a shared FinOps view with engineering.
Approach
- Baseline Cost Explorer by service and environment; tag gaps closed for chargeback
- Rightsized EC2 and RDS using utilization and Compute Optimizer
- Removed idle volumes, snapshots, and non-production always-on stacks
- Modeled Savings Plans coverage after rightsizing to avoid overcommitment
- Installed Budgets and anomaly alerts with a monthly FinOps review cadence
Results
- ~40%Infrastructure cost reduction
- 99.9%Uptime maintained through changes
- 6 weeksTo first material savings wave
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