AWS Cloud Landing Zone: Enterprise Foundation
Multi-account AWS architecture with Control Tower, security guardrails, and Terraform automation
50+
AWS Accounts
200+
Guardrails Active
30min
New Account Setup
Quick Facts
Industry: Financial Services
Compliance: SOC 2, PCI-DSS
Timeline: 10 weeks
Accounts: 50+ across 4 OUs
Tech: Control Tower, Terraform, SSO
The Challenge
A fast-growing fintech company had organically created 30+ AWS accounts over 5 years, each configured differently with no central governance. Security teams couldn't enforce consistent policies, and compliance audits were becoming increasingly painful.
New account provisioning took 2-3 weeks of manual work, creating bottlenecks for development teams. The company needed a scalable foundation that could support their growth while meeting PCI-DSS requirements.
Pain Points
❌ Inconsistent security configurations across accounts
❌ No centralized logging or audit trail
❌ 2-3 weeks to provision new accounts
❌ Manual compliance evidence collection
❌ No network isolation between environments
Our Solution
🏗️
Control Tower Foundation
Deployed AWS Control Tower with custom guardrails for PCI-DSS compliance. Configured 4 Organizational Units: Security, Production, Development, and Sandbox with appropriate SCPs.
🔐
Security & Identity
Implemented AWS SSO with Azure AD federation for centralized identity. Created permission sets aligned with least-privilege principles and job functions.
🌐
Network Architecture
Designed hub-and-spoke network with Transit Gateway. Implemented centralized egress, VPC endpoints for AWS services, and network segmentation between environments.
📋
Account Factory (Terraform)
Built Terraform-based Account Factory for self-service account provisioning. New accounts include VPC, IAM baseline, CloudTrail, GuardDuty, and Security Hub automatically.
Results
30min
Account Provisioning
Down from 2-3 weeks
200+
Guardrails Active
Automated compliance
100%
Audit Coverage
Centralized logging
85%
Faster Compliance
Evidence collection
Frequently Asked Questions
What is an AWS Landing Zone?
A pre-configured, secure, multi-account AWS environment based on best practices with identity management, governance, security, networking, and logging already configured.
What is AWS Control Tower?
A managed service that automates multi-account AWS environment setup following best practices, providing guardrails, account factory, and governance dashboard.
How long does implementation take?
Typically 6-12 weeks depending on complexity, including architecture design, Control Tower setup, networking, and security/compliance implementation.
What are AWS Organizations SCPs?
Service Control Policies manage permissions across your AWS Organization, offering central control over maximum available permissions for all accounts.
Related Resources
AWS Landing Zone with Terraform
Design and deploy enterprise-grade AWS Landing Zone.
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