What is AWS Well-Architected Review and why it matters

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Cloud architectures can break in production. AWS Well-Architected provides a consistent approach to evaluate architectures and implement scalable designs.

We are on our way to become an AWS Well-Architected Partner. This post explains what the framework is, how a review works in practice, and what you actually get out of it.

What is the AWS Well-Architected Framework?

The AWS Well-Architected Framework is not a checklist you hand to a consultant and forget about. It is a structured way to look at a system, whether it is already running or still being designed, and ask: is this built the way it should be?

Developed by AWS from thousands of architecture reviews across their customer base, it gives engineers and architects a common language for evaluating system quality across six dimensions. It is not opinionated about which AWS services you use. It is opinionated about how you use them. You can read the full framework documentation on the AWS Well-Architected page.

A Well-Architected Review surfaces problems before they cause damage. Applied early enough in the design phase, it prevents them from being built in at all.

The six pillars

PillarFocusKey topics
Operational excellenceRunning and monitoring systems, and continually improving processes and proceduresAutomating changes, responding to events, defining standards to manage daily operations
SecurityProtecting information and systemsConfidentiality and integrity of data, managing user permissions, establishing controls to detect security events
ReliabilityWorkloads performing their intended functions and recovering quickly from failureDistributed system design, recovery planning, adapting to changing requirements
Performance efficiencyStructured and streamlined allocation of IT and computing resourcesSelecting resource types and sizes optimized for workload requirements, monitoring performance, maintaining efficiency as business needs evolve
Cost optimizationAvoiding unnecessary costsUnderstanding and controlling spend, selecting resources of the right type and quantity, scaling to meet business needs without overspending
SustainabilityMinimizing the environmental impacts of running cloud workloadsShared responsibility model for sustainability, understanding impact, maximizing utilization to minimize required resources

Each pillar has its own set of design principles, best practices, and questions. During a review, your workload is assessed against all of them, component by component.

Common findings by pillar

To give you a sense of what typically surfaces:

  • Operational excellence: no structured incident response process, missing alerting on key metrics, deployments that require manual steps
  • Security: overly permissive IAM roles, secrets stored in environment variables, no logging of API calls to sensitive resources
  • Reliability: single points of failure in data pipelines, no failover testing, hard-coded resource limits
  • Performance efficiency: oversized instances left over from early scaling decisions, no caching layer, missing performance baselines
  • Cost optimization: reserved capacity not used where it should be, idle resources accumulating, no budget alerting
  • Sustainability: compute resources running at low utilization, unnecessary data transfer between regions

How the review works

A structured conversation, not an audit

A Well-Architected Review covers a single workload or product, not an entire AWS account. Scoping it tightly is what makes the output useful.

Here is how we run it:

Step 1: Scope definition

We identify which workload or solution to review together. This can be a production service, a customer-facing platform, or an architecture still in the design phase. Reviews done early, before infrastructure is built, are often the most cost-effective since problems are easier to fix on paper than in a live system. We agree on the boundaries upfront so the review stays focused.

Step 2: Architecture walkthrough

We go through the workload with your team. For existing systems this covers infrastructure layout, AWS services in use, data flows, IAM setup, deployment pipeline, and monitoring stack. For systems still in design, we work from architecture diagrams, decision documents, and intended service choices. Our Well-Architected leads ask questions across all six pillars using the official AWS questionnaire as a guide.

This session typically takes half a day to a full day depending on workload complexity.

Step 3: Risk classification

Each finding is classified as one of the following:

  • High Risk Issue (HRI): Something that can cause an incident, data loss, a security breach, or significant cost overrun. Needs to be addressed.
  • Medium Risk Issue (MRI): An area for improvement that does not require immediate action but should be in the backlog.

Step 4: Improvement plan

We deliver a written report with all findings prioritized. Each item includes a plain-language description of the problem, the business impact if left unaddressed, and a concrete remediation path.

No abstract advice. Specific changes, with clear rationale.

Step 5: Remediation support

As an AWS partner, we can implement the changes, or hand the plan to your internal team if you prefer to run it yourself. Either way, the report is yours.


The full process from scoping call to final report typically takes 2-4 days.

What you get out of it

OutcomeWhat it means in practice
VisibilityA clear picture of where your architecture is strong and where it has gaps, across all six dimensions, in a single report
Risk reductionHRIs surfaced and prioritized before they cause an incident: security misconfigurations, single points of failure, and runaway costs all documented
AWS creditsCustomers who complete a Well-Architected Review through an AWS partner are eligible for AWS credits worth up to 10% of their annual AWS spend, to offset the cost of remediation work. We help you apply for that.
ConfidenceA third-party validation of your architecture, useful for internal stakeholders, board reporting, or enterprise procurement processes

Who is it for?

A Well-Architected Review is valuable at any stage, from early architecture design through to mature production systems. The earlier it happens, the cheaper problems are to fix. The later it happens, the more urgent it typically becomes.

It is particularly valuable if:

  • You are designing a new solution and want to validate architectural decisions before building
  • Your workload has grown or evolved significantly since it was first designed
  • You are preparing for a security audit or enterprise procurement
  • You suspect there are cost or reliability issues but do not know where to start
  • You want an independent second opinion before a major scaling event

It also works well as a recurring practice. Running a review once a year on a critical workload keeps architectural drift in check before it compounds.

Why work with Ignit on this?

We are an AWS Advanced Tier Partner with hands-on experience building and operating cloud platforms at scale. We have delivered enterprise-grade solutions for clients including Versuni (formerly Philips) and Vusion Group, with platforms serving over 20 million end users.

That experience matters in a Well-Architected Review. We are not working from a checklist. We have seen the failure modes, the cost patterns, and the security gaps that appear when real systems run under real conditions. We bring that context to every review, whether we are looking at a system already in production or one still being designed.

If you want to run a Well-Architected Review on your workload or design, get in touch. We run it as a standalone engagement with no commitment to further work unless you want it.

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