Landing Zone and Multi-Account Network Architecture for Fortune 500 Tech Firm
Customer Challenge
The company was expanding its cloud footprint rapidly as it migrated complex geospatial processing systems and enterprise workloads to AWS. However, the growth of its cloud environment introduced several architectural challenges.
Key Challenges
- Scaling a Multi-Account AWS Environment
- The organization needed to operate dozens of AWS accounts across multiple teams and environments, including their development, staging and production workloads as well as shared infrastructure services. Without a structured governance model, managing a large number of accounts could introduce operational complexity, inconsistent configurations, and security risks.
- Complex Cross-Account Networking
- The company operated numerous VPC environments distributed across multiple AWS accounts, each supporting different applications and engineering teams. They required a network architecture capable of enabling secure communication between VPCs, supporting transitive routing across accounts, simplifying network management at scale and maintaining segmentation between environments. Traditional VPC peering architectures do not scale well in large multi-account environments, making centralized networking essential.
- Centralized Identity and Access Management
- Engineering teams required secure access to multiple AWS accounts. The organization needed a solution that could provide centralized authentication, role-based access controls and simplified login workflows for developers and administrators.
- Enterprise Security and Governance
- Operating within a highly regulated technology environment, the organization required strong security governance across all cloud accounts. This included centralized security monitoring, standardized security guardrails as well as visibility into configuration and compliance risks.
QyrosCloud Solution
QyrosCloud designed and implemented a secure enterprise AWS landing zone architecture that established a scalable foundation for multi-account cloud operations.
The architecture focused on three core pillars:
- multi-account governance
- centralized networking
- unified identity and security management
1Enterprise Landing Zone with AWS Control Tower
The environment was built using AWS Control Tower, enabling automated governance and standardized account provisioning.
Key capabilities included automated creation of new AWS accounts, security guardrails applied across the organization, centralized logging and auditing and standardized account configuration
This landing zone architecture ensured that all accounts adhered to consistent security and governance policies.
2Multi-Account Governance with AWS Organizations
The AWS environment was structured using AWS Organizations, enabling centralized management of more than 20 AWS accounts.
Accounts were grouped into logical organizational units (OUs) supporting different workloads and teams, including security and audit teams.
This structure allowed administrators to apply policies and permissions consistently across accounts.
3Scalable Cross-Account Networking with AWS Transit Gateway
To address the complexity of networking across multiple AWS accounts, QyrosCloud implemented a centralized architecture using AWS Transit Gateway.
This architecture established a hub-and-spoke networking model, enabling VPC connectivity across accounts without requiring numerous VPC peering relationships.
Key benefits included centralized routing management, transitive connectivity between VPCs, simplified network topology and scalable architecture supporting future environments.
The Transit Gateway architecture enabled secure communication across VPCs distributed across more than 20 AWS accounts.
4Centralized Authentication with AWS IAM Identity Center
To simplify access management, the architecture implemented AWS IAM Identity Center (AWS SSO). This provided centralized authentication across all AWS accounts, role-based access for engineering teams, streamlined login workflows and simplified management of user permissions
Developers and administrators could securely access multiple AWS accounts through a unified authentication platform.
5Security Visibility with AWS Security Hub
To provide centralized security monitoring, the environment integrated AWS Security Hub. This allowed security teams to aggregate and review findings from multiple AWS services across the entire multi-account environment.
Security teams gained visibility into configuration risks, compliance findings and security alerts across all AWS accounts.
Results & Business Impact
The architecture established a secure and scalable AWS platform supporting enterprise cloud operations.
20+ AWS Accounts Centrally Governed
Enterprise-scale multi-Account platform automated account provisioned automatically through AWS Control Tower
Highly Scalable Network Architecture
The Transit Gateway architecture dramatically simplified networking across the environment.
Streamlined Identity and Access Management
Centralized authentication simplified access to the AWS environment to reduce administrative overhead for account management.
Enhanced Security Visibility
Centralized security monitoring improved visibility across the cloud environment with findings aggregated across all accounts using AWS Security Hub.
About Fortune 500 Geospatial Company
The customer is a Fortune 500 technology company specializing in geospatial analytics and advanced data platforms. The organization develops and operates solutions that support large-scale spatial data processing, satellite imagery analysis, and location-based intelligence used across government, commercial, and research sectors.