Designing a well-architected AWS environment
A strong AWS setup starts before the first application is deployed. We create a landing zone with AWS Organizations and Control Tower, separating production, staging, development, security and logging into different accounts. Users sign in through IAM Identity Center with roles rather than long-lived access keys, and service control policies block risky actions such as disabling audit logging or using unapproved regions.
The AWS Well-Architected Framework provides a checklist across six pillars: operational excellence, security, reliability, performance efficiency, cost optimization and sustainability. Reviewing workloads against it early catches design gaps, such as single points of failure or missing encryption, while they are still cheap to fix.
Networking deserves the same care: private subnets for databases and services, controlled internet access, VPC endpoints for AWS services and a clear plan for connecting to offices or other clouds. Getting these foundations right early avoids painful network redesigns once production traffic depends on them.
- Separate accounts per environment and function.
- Single sign-on with roles, no long-lived keys.
- Centralized CloudTrail and configuration logging.
- Guardrails through service control policies.
- Everything defined as infrastructure as code.
- Budgets and cost alerts per account.
