Spark EPC - AWS Landing Zone Health and Maturity Review

The AWS Landing Zone Review is a fixed-scope consulting engagement that assesses the health, maturity, and scalability of your AWS Landing Zone. We evaluate how your AWS environment is structured and governed - including AWS Organizations, AWS Control Tower, AWS IAM Identity Center, AWS CloudTrail, AWS Config, AWS Security Hub, and networking constructs - across six core domains: identity, networking, security, policy, operations, and cost management.

We deliver clear findings, risk-based recommendations, and a prioritised remediation roadmap so your landing zone can safely support ongoing migration, modernisation, and business growth.

This engagement is designed for organisations experiencing:

• Rapid AWS growth (new accounts, new business units, more workloads)
• Audit findings or compliance pressure (e.g., ISO 27001, PCI-DSS, NZISM, or industry-specific obligations)
• Security incidents or near-misses with a growing security backlog
• Cost spikes with unclear accountability (chargeback/showback absent)
• Merger, acquisition, or divestment requiring AWS account restructuring
• New workload migration programmes where foundations must come first
• Skills gaps or inconsistent engineering practices across teams
• Modernisation (EKS, serverless, managed services adoption) without platform guardrails

A financial services organisation consolidating 80+ AWS accounts post-acquisition engaged Spark EPC to assess their landing zone. The review identified critical IAM misconfigurations, inconsistent tagging across business units, and missing centralised logging. Within the engagement, we delivered a sequenced roadmap covering 45+ findings across all six domains, enabling the client to prioritise remediation aligned to their regulatory timeline.

• Current-state assessment report covering all six domains with evidence-based findings
• Risk-scored findings register typically producing 30-50+ actionable recommendations
• Prioritised remediation roadmap sequenced by risk, effort, and business impact
• Executive summary presentation for leadership and governance stakeholders

Stronger Security and Compliance Identify missing guardrails and controls across AWS Security Hub, AWS Config rules, and IAM policies to reduce exposure and audit stress.

More Predictable Cloud Costs Assess tagging strategies, governance structures, and accountability models to enable cost transparency and control.

Faster, Smoother Delivery Identify standard patterns and guardrails that reduce friction and rework - helping teams stop reinventing the wheel for each new workload.

Improved Reliability and Operability Recommend monitoring, logging, and operational practice improvements using AWS CloudWatch and CloudTrail to minimise outages and speed up incident response.

Confidence to Scale Ensure your landing zone supports more workloads, more teams, and more change without introducing chaos.

In Scope:

• Assessment of AWS Organizations structure, account strategy, and OU design
• Review of AWS Control Tower configuration and guardrails
• Identity and access management (IAM Identity Center, federation, role design)
• Network architecture (VPC design, Transit Gateway, connectivity patterns)
• Security controls (Security Hub, GuardDuty, Config rules, encryption)
• Operational tooling (CloudWatch, CloudTrail, backup, patching)
• Cost governance (tagging, budgets, Reserved Instance/Savings Plan usage)

Out of Scope:

• Remediation implementation (available as a follow-on engagement)
• Application-level security assessments
• Penetration testing or vulnerability scanning
• Workload-specific architecture reviews

Prerequisites:

• Read-only access to AWS Organizations management account
• Availability of key stakeholders for discovery workshops
• Access to existing architecture documentation (if available)

Reduce Cost: Governance, tagging, and consumption controls reduce waste. Standardised patterns avoid rework and architecture churn.

Reduce Risk: Enforceable policies and traceability improve audit outcomes. Correct networking and identity configuration reduces outage likelihood.

Improve Speed to Market: Standard patterns and account design reduce lead time to provision environments. Clear decision rights reduce delays.

Enable Compliance: Policy-driven controls and centralised logging support regulated requirements with clear evidence collection.

Book a 30-minute Landing Zone Discovery Call with our team to scope your environment and receive an indicative timeline for your review.