AWS Cost Optimization & Infrastructure Audit – Case Study (Client A | NDA Masked)

Portfolio case study documenting a real-world AWS environment review and optimization assessment.
Client identity and infrastructure identifiers are anonymized due to NDA.

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📌 Project Overview

Date: January 2025
Prepared By: Abhishek Pandey
Role: Cloud Pre-Sales Engineer (AWS)
Client: Client A (Masked)
Region: ap-south-1 (Mumbai)

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🎯 Objective

• Audit current AWS infrastructure
• Analyze utilization via CloudWatch (~4 weeks)
• Identify cost inefficiencies and rightsize compute
• Recommend improvements without impacting reliability or security

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⚠️ NDA & Confidentiality

• Client name and organization details removed
• Instance IDs, bucket names, IPs masked
• Workload names generalized (Production / Staging)

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🏗️ Environment Summary (Masked)

Key Services Observed: EC2, S3, VPC, ELB/ALB, CloudWatch, IAM, Route53, WAF, Lambda, DynamoDB, CloudFront, SNS/SQS

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💰 Key Recommendations

1) EC2 Rightsizing

Estimated monthly savings: ~$77.24

2) Intel → AMD x86 Modernization (if compatible)

Estimated monthly savings: ~$47.59

3) Reserved Instances (No Upfront)

• 1-Year RI: ~$27.95/month
• 3-Year RI: ~$53.36/month

4) Waste Cleanup (EIPs / snapshots)

Estimated monthly savings: ~$10.95

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📊 Total Estimated Savings

Estimated range: ~$141.55 to $165.42 / month
Annual impact: ~$1,700 to $2,000 / year

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🔒 Security Recommendations (Summary)

• Enable MFA (especially privileged users)
• Rotate and audit access keys
• Least privilege IAM policies
• Encrypt EBS using AWS KMS
• Reduce public exposure (private subnets)
• Enable Trusted Advisor + VPC Flow Logs

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📂 Repository Structure

aws-infrastructure-optimization-case-study/
├── README.md
└── artifacts/
    ├── ec2-rightsizing-analysis.md
    ├── reserved-instance-analysis.md
    └── security-recommendations.md

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👤 Author

Abhishek Pandey
LinkedIn: https://linkedin.com/in/abhishek-pandey-045241316
GitHub: https://github.com/abhishek071700