Victor GrenuAWS Infrastructure & Security Expert

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Victor Grenu

About Me

Hi, I'm Victor, an independent AWS Infrastructure & Security specialist with 19+ years of hands-on experience (9+ on AWS), architecting, automating, and securing cloud-native and mission-critical workloads. I help organizations modernize their AWS environments through security reviews, modern architecture, DevSecOps coaching, and FinOps tooling. I'm the co-founder of unusd.cloud for AWS cost and waste awareness, and the creator of IAMTrail, the AWS Managed Policy Changes Archive.

AWS Certified Solutions Architect
Cloud Security
Infrastructure as Code
DevSecOps
FinOps & Cost Optimization
Automation
AWS Certifications Badges
6x AWS Certified

What I Do

Freelance AWS Infrastructure & Security Services

AWS Architecture

Design, review, and optimize your AWS infrastructure for security, scalability, and cost-efficiency.

Security Audits & Hardening

Identify vulnerabilities, implement best practices, and secure your AWS environment end-to-end.

Automation & DevSecOps

Automate deployments, security controls, and compliance with Infrastructure as Code and CI/CD pipelines.

Cloud Cost Optimization

Analyze and reduce your AWS spend with actionable recommendations and automation.

Customers

Saint-Gobain Microsoft ENGIE Mediametrie Formance CodeShield Google Ponant mangrove snef winerz ermetic Saint-Gobain Microsoft ENGIE Mediametrie Formance CodeShield Google Ponant mangrove snef winerz ermetic

Open Source Projects

Selected work for the AWS Security community

🛡️ AWS Security Survival Kit

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Comprehensive security monitoring and alerting solution for AWS accounts. Includes CloudWatch dashboards and automated security controls.

View on GitHub

🔍 IAMTrail

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Full version history and diffs for 1,525+ AWS Managed IAM Policies, archived since 2019. Catch every silent policy change AWS makes.

Visit IAMTrail

🌐 Subnet Watcher

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Monitor available IPs in VPC subnets using CloudWatch metrics. Avoid IP shortages with proactive alerts.

View on GitHub

🕵️ AWS Trustline

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Analyze AWS IAM and S3 policies to identify third-party and external access. Detects vendors, unknown accounts, and confused deputy risks in your AWS environment.

View on GitHub
Want to see more? Check out many more projects on GitHub

unusd.cloud

AWS Cost Optimization Made Simple

The garbage collector for your AWS: identify unused and underutilized resources, reduce costs, and shrink your attack surface.

700+
Happy Users
$2.8M+
Savings Detected
30k+
AWS Asset Scans
20+
AWS Services
🔍

Automated Scanning

Scheduled detection across all AWS regions. EC2, RDS, EBS, S3, and 20+ services covered.

🧚

Navi AI Companion

Ask questions in plain English, get actionable recommendations based on FinOps best practices.

📊

Actionable Reports

Get reports via Email, Slack, or Teams with cost breakdown, CLI snippets, and direct AWS Console links.

Visit unusd.cloud Read the Docs
30 free scans • No credit card required • Available on AWS Marketplace
OPEN SOURCE

IAMTrail

AWS Managed Policy Changes Archive

AWS silently updates Managed IAM policies all the time. IAMTrail catches every single change, with full version history and diffs archived since 2019.

1,525
Policies Tracked
4,470+
Commits Archived
424
AWS Services
2019
Tracking Since

Full Diff History

Every version of every AWS Managed IAM policy, with inline diffs showing exactly what changed and when.

Change Notifications

Daily or weekly email digests with inline diffs. Track specific policies or subscribe to all changes.

Early Service Detection

Spot upcoming AWS services before they launch. New v1 policies often signal unreleased features.

Explore IAMTrail   View Source
Free, no account needed • Email subscriptions available • Formerly MAMIP

Writing

Thoughts on AWS, security, and cloud engineering

I write about AWS security best practices, cloud architecture patterns, DevSecOps workflows, and lessons learned from real-world engagements.

  Read on zoph.me

Why Choose Me

Your trusted AWS Infrastructure & Security partner

AWS Certified Expert

Advanced AWS certifications and deep security expertise.

19+ Years Experience

Extensive experience in enterprise security and cloud architecture.

Proven Track Record

Successfully secured cloud infrastructure for global clients.

Personal Approach

Direct, strategic partnership with continuous support.

Get in Touch

Let’s work together on your AWS journey

hello@zoph.io | Book a Call