Cloud Security Engineers don't just monitor cloud environments. They design and build them securely from day one. This project is about doing exactly that: creating an AWS account structure with proper security controls, all defined as code so it's repeatable and auditable.

The foundation is IAM (Identity and Access Management). Instead of giving broad permissions, every role and policy follows the principle of least privilege: each user or service gets only the exact permissions it needs, nothing more. The project includes custom IAM policies, role-based access, and MFA enforcement.

Networking is handled through a VPC (Virtual Private Cloud) with proper segmentation: public subnets for things that need internet access, private subnets for everything else, security groups acting as firewalls, and network ACLs as an extra layer. This mirrors how production cloud environments are actually architected.

S3 buckets are hardened with versioning, server-side encryption, public access blocks, and bucket policies that restrict who can read or write data. S3 misconfigurations are one of the most common sources of cloud data breaches, so getting this right matters.

CloudTrail is enabled to log every API call made in the account: who did what, when, and from where. This creates an audit trail that's essential for incident investigation and compliance. Logs are stored in a dedicated, locked-down S3 bucket.

Everything is deployed using Terraform, an Infrastructure as Code tool. This means the entire security architecture is defined in version-controlled configuration files. No clicking around in the AWS console. If something breaks, you can rebuild the entire environment from scratch in minutes.

How to design secure cloud architectures with proper network isolation and access controls. How IAM policies work and how to enforce least privilege in practice. How to harden S3 storage against common misconfiguration attacks. How to set up cloud audit logging and understand what the logs tell you. How to use Terraform to define security infrastructure as code, a core skill for Cloud Security Engineers.

Cloud Security Engineer is one of the highest-demand, highest-salary roles in cybersecurity. Every company migrating to the cloud needs someone who can design secure architectures, and the complexity of cloud environments (constantly changing, multi-service, multi-region) makes this very difficult to automate away. This project demonstrates that foundational skill.

AWS • Terraform • IAM • VPC • Security Groups • S3 • CloudTrail • KMS • AWS CLI