Sharing my hands-on Enterprise Cloud Platform project

Source: Dev.to

The Problem

Organizations face common pain points when adopting public cloud:

• Security misconfigurations
• Excessive permissions & privilege escalation
• Security alert fatigue & noise
• Lack of unified visibility
• Infrastructure configuration drift
• Governance & policy enforcement gaps
• Compliance & audit overhead
• Network segmentation complexity
• Slow incident response
• Container & Kubernetes security gaps
• Data exposure & breach risks
• Identity sprawl & credential management
• Unpredictable cloud costs & waste

My Solution

A secure, multi‑account Enterprise Cloud Platform on AWS built on security‑by‑design principles.

Key Architecture Components

Foundation

• AWS Organizations with Service Control Policies (SCPs) for governance
• IAM Identity Center for centralized access
• Multi‑account strategy: Management, Security, Network, Production, Development, Monitoring

Security Operations

• Centralized detection with GuardDuty and Security Hub
• Automated incident response via EventBridge / Lambda
• Proactive compliance monitoring with AWS Config

Zero‑Trust Network

• Hub‑and‑spoke model using Transit Gateway
• Centralized inspection VPC and Network Firewall
• Default deny traffic between Production and Development

Full Automation

• Infrastructure defined as code with Terraform modules
• GitOps‑driven application deployment using ArgoCD to EKS clusters

Unified Observability

• Central monitoring account with AWS Managed Prometheus and Grafana
• Consolidated metrics for infrastructure, applications, and security

What I’d Love to Discuss

• Experiences with implementing GitOps at scale
• Network security patterns for multi‑account environments
• Balancing security guardrails with developer productivity

This project has been an incredible learning journey, blending my traditional networking expertise with modern cloud‑native practices. Key implementations include establishing granular governance by restructuring AWS OUs to resolve SCP inheritance issues, and enabling secure, automated deployments by configuring a robust cross‑account OIDC framework for Terraform, eliminating long‑lived credentials.

I’d be grateful for any insights, suggestions, or experiences you might share from similar implementations. Feel free to ask questions about any part of the architecture!

Looking forward to learning from and contributing to this community.