Landing Zones

Overview

Remangu Landing Zones establish a production-grade AWS foundation built on the AWS Well-Architected Framework. The engagement delivers a multi-account structure with centralized identity and access management, network segmentation, security baselines, and Infrastructure as Code templates that serve as the platform layer for all subsequent workloads.

Organizations adopting AWS for the first time—or remediating an organically grown environment—gain a structured foundation that enforces governance, isolates blast radius across workloads, and provides repeatable patterns for provisioning new accounts and services. The resulting architecture spans up to 31 AWS regions and is designed to maintain 99.99% availability for production workloads.

Key Features

• Well-Architected Design — Every architectural decision is evaluated against the six pillars of the AWS Well-Architected Framework: operational excellence, security, reliability, performance efficiency, cost optimization, and sustainability. The design documentation becomes a living reference for your cloud team.
• Multi-Account Structure — AWS Organizations and Control Tower establish a hierarchy of accounts segmented by environment (development, staging, production), workload type, and compliance boundary. Service Control Policies enforce guardrails that prevent configuration drift at the organizational level.
• Centralized IAM — Identity federation through AWS IAM Identity Center connects to your existing identity provider. Role-based access policies follow the principle of least privilege, and access is auditable through CloudTrail with centralized log aggregation.
• Infrastructure as Code — All landing zone components are defined in Terraform or AWS CloudFormation. Account vending machines automate the provisioning of new accounts with pre-configured networking, security controls, and monitoring. Changes go through pull request review and automated validation.
• Security Baseline — GuardDuty, Security Hub, Config Rules, and CloudTrail are enabled organization-wide. Findings aggregate into a central security account, and automated response playbooks handle common threat patterns without manual intervention.

Technical Specifications

Specification	Detail
Framework	AWS Well-Architected (all 6 pillars)
Account Structure	AWS Organizations + Control Tower
Identity Federation	AWS IAM Identity Center, SAML 2.0, OIDC
IaC Tooling	Terraform / CloudFormation
Security Services	GuardDuty, Security Hub, Config, CloudTrail
Region Coverage	Up to 31 AWS regions
Target Availability	99.99%

How It Works

1. Discover — Remangu architects conduct a discovery workshop to understand your organizational structure, compliance requirements, workload portfolio, and growth projections. The output is a design document detailing the proposed account hierarchy, network topology, and security architecture.
2. Build — Infrastructure as Code modules are authored, reviewed, and tested. The landing zone is deployed incrementally—Organizations and Control Tower first, then networking, then security services—with validation gates at each stage.
3. Migrate — Existing workloads are migrated into the new account structure following AWS migration best practices. Remangu engineers handle account moves, network re-peering, IAM policy translation, and DNS cutover with minimal disruption.
4. Transfer — Knowledge transfer sessions equip your cloud team to operate and extend the landing zone. Documentation covers account vending procedures, security response playbooks, and IaC contribution guidelines. Optional ongoing management is available through Remangu CloudOps.