AWS Cost Optimization Case Studies

Real-world examples of how our 2-week FinOps Triage delivers measurable savings, improved efficiency, and better performance — backed by data, charts, and honest lessons learned.

All case studies: 2-week engagements
Read-only audit + reversible changes
EC2 Optimization B2B SaaS • Series B

Scaling E-commerce Analytics 40% While Reducing EC2 Costs 36.8%

How we improved resource efficiency from 24% to 61% CPU utilization for a seasonal SaaS platform, enabling 40% traffic growth without proportional infrastructure costs — including a critical Graviton migration rollback.

Monthly AWS Spend: $62,000
Savings: 36.8%
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36.8%
Cost Reduction
$4,340/month saved
Kubernetes / EKS Marketing Automation • Series B

From EKS Cost Blindness to 31.2% Savings with Team-Level Attribution

How we reduced Kubernetes costs from $11,340 to $7,800/month while establishing cost ownership across 8 engineering teams running 47 microservices — including a VPA over-correction that caused 5 OOMKilled errors before we fixed our approach.

Monthly AWS Spend: $86,000
Savings: 31.2%
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31.2%
Cost Reduction
$3,540/month saved
S3 Storage Video Streaming • Series C

Reducing S3 Storage Costs 38.7% for Media Platform with 2.4 PB Data

How we cut storage costs from $58,400 to $35,800/month by implementing intelligent tiering and lifecycle policies for a video streaming platform — including a critical pivot from Glacier Flexible to Glacier Instant Retrieval to maintain 2-second playback SLA.

Monthly AWS Spend: $340,000
Savings: 38.7%
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38.7%
Cost Reduction
$22,600/month saved
Savings Plans & RIs E-commerce Marketplace • Series B

Optimizing $156K Monthly Compute Spend with Hybrid Commitment Strategy

How we reduced compute costs by 23.8% ($37,100/year saved) by rebalancing Reserved Instances and Savings Plans for a hybrid workload with steady-state and burst patterns — including an over-commitment mistake that taught us to model based on P10 usage, not peak.

Monthly AWS Spend: $312,000
Savings: 23.8%
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23.8%
Cost Reduction
$3,090/month saved

Case Studies Summary

Case Study Industry AWS Service Focus Savings Key Challenge
EC2 Right-Sizing B2B SaaS EC2, Graviton 36.8% Graviton migration rollback
EBS Optimization FinTech EBS, gp3 Migration 27.4% IOPS tuning + SOC 2 compliance
EKS Cost Attribution Marketing Automation EKS, Kubernetes 31.2% VPA over-correction (5 OOMKilled)
S3 Lifecycle Video Streaming S3, Glacier 38.7% Glacier Flexible broke playback SLA
Lambda Memory Tuning API Platform Lambda, API Gateway 41.9% Memory-CPU profiling & optimization
Commitment Optimization E-commerce Savings Plans, RIs 23.8% Over-commitment on burst workload

Honest Narratives

Every case study includes challenges, reversals, and what didn't work — because real FinOps isn't perfect on the first try.

Data-Driven Results

All metrics backed by AWS Cost Explorer data, CloudWatch graphs, and real billing analysis — not theoretical projections.

Performance + Cost

FinOps isn't just cost cutting — it's optimizing the balance between efficiency, performance, and business value.

Ready to Optimize Your AWS Costs?

Our 2-Week FinOps Triage delivers measurable savings like the case studies above — with read-only audit access, reversible changes, and honest guidance.

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