BBD partnered with a leading retail client to design and implement a secure, scalable, and fully governed AWS environment using AWS Control Tower as the core foundation.
Objectives
- Provide a secure and governed environment for application and data workloads
- Enable automation of multi-account management, including account provisioning, guardrail enforcement, and centralised compliance monitoring
- Ensure scalability and flexibility to accommodate future workloads, accounts, and operational requirements
Benefits
- Centralised governance and compliance across all accounts with automated guardrails
- Reliable account provisioning and a structured organisational model for future growth
- Repeatable and predictable deployments using Terraform
- Enhanced operational visibility and control through monitoring, tagging, and cost management
- A scalable foundation that can accommodate new accounts and workloads without compromising security or compliance
Overview of the solution
The client needed a secure, scalable AWS environment that could host and govern application and data workloads while meeting their operational and compliance requirements. BBD addressed this by leveraging AWS Control Tower to establish an AWS Landing Zone. This solution automated multi-account provisioning, pre-configured governance guardrails, and integrated seamlessly with AWS IAM Identity Centre for secure, least-privilege access. This approach allowed BBD to enforce Service Control Policies (SCPs), implement security best practices (CIS and PCI DSS), and maintain continuous visibility and compliance across all accounts. The result was a robust, scalable foundation that reduced operational overhead and positioned the client for efficient future growth.
Approach
BBD implemented a multi-account AWS environment orchestrated through AWS Control Tower and managed centrally with AWS Organizations. This phased approach focused on the following key areas:
- Infrastructure as Code (IaC): Terraform was used to deploy resources consistently and reliably, minimising human error and improving operational efficiency
- Operational excellence: Tag enforcement and monitoring were implemented to ensure resource visibility and efficient management across accounts
- Security and identity management: SSO via AWS IAM Identity Centre, multi-factor authentication (MFA), and least-privilege IAM roles were used to provide secure access
- Networking and encryption: All North-South and East-West traffic was routed through a Layer 4 firewall, with encryption enforced for data at rest and in transit
- Cost optimisation: Tagging, budgeting, AWS Cost Explorer, and Cost Anomaly Detection were implemented for proactive cost management and financial transparency
Impact of BBD’s partnership
BBD delivered a scalable, secure, and well-governed AWS environment, providing the client with centralised control and a structured organisational model for future growth. By automating key governance and provisioning tasks, BBD enabled the client to focus on business-critical objectives while maintaining a secure, compliant, and highly available cloud environment. BBD continues to provide ongoing managed services, including operational support, monitoring, cost optimisation, and compliance oversight.