AWS Architecture

AWS Well-Architected Review checklist for SaaS platforms

8 min read
July 18, 2026
Islam Ali
Founder & Lead Cloud Architect

The evidence, questions, and engineering decisions SaaS teams should prepare before an AWS Well-Architected review.

A useful Well-Architected review is not a questionnaire exercise. It connects architecture decisions to customer impact, recovery expectations, security risk, operating practices, performance, cost, and sustainability.

Define workloads and business criticality

Document service boundaries, owners, data sensitivity, availability expectations, recovery objectives, traffic patterns, and critical dependencies.

Collect operational evidence

Prepare architecture diagrams, deployment workflows, IAM patterns, backup evidence, monitoring, incident history, cost allocation, security findings, and runbooks.

Review all six pillars

Cover operational excellence, security, reliability, performance efficiency, cost optimization, and sustainability without treating any pillar as isolated.

Prioritize findings

Separate urgent risk from medium-term platform improvement, assign owners, estimate effort, define validation, and turn findings into a 30-, 60-, and 90-day roadmap.

Turn Insight into Action

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