Energy-sensing platform: a 57-question WAR maps a Top-5 AWS remediation roadmap

Well-Architected ReviewAdvisoryHigh-risk-issue remediation roadmapResilience-gap assessment (RTO/RPO)Observability-gap assessmentBlast-radius & tenancy isolation reviewCost-optimization deep diveTarget-state architecture design & costed POCManaged billing & resellRightsizing & instance-family modernizationCommitment & RI optimizationStorage tiering & lifecycle policiesStanding cost-optimization mechanism

Accepted

Top-5 remediation roadmap adopted by the customer

~$700/mo

savings surfaced in the Cost Deep Dive

review questions answered across all six pillars

AWS Control TowerAWS Well-Architected ToolAmazon CloudFrontAWS Savings Plans

Shared anonymously — the customer’s name is held by VeUP and available on request.

VeUP put the customer’s fibre-optic-sensing workload — monitoring critical energy infrastructure — through a full 57-question AWS Well-Architected Framework Review, distilled 43 high-risk and 14 medium-risk findings into a Top-5 roadmap the customer accepted, proposed an AWS Control Tower landing zone, and found ~$700/mo of savings in a Cost Deep Dive.

The challenge

The customer runs a fibre-optic-sensing workload on AWS that grew up in a single account and a single Region. Production, staging, and development shared one AWS account and VPC with overlapping CIDR ranges and no traffic inspection; there was no disaster-recovery plan and data lived in one Region with no replication or S3 backups; monitoring was reactive (the team often learned of problems from client complaints); components were tightly coupled with no auto-scaling; and encryption, data-classification, and least-privilege controls had gaps. The company needed a clear-eyed assessment and a prioritized plan to mature its operations without over-spending.

The solution

VeUP took the customer's entire AWS estate through the full Well-Architected Framework Review — 57 questions answered, surfacing 43 high-risk and 14 medium-risk issues — and distilled the findings into Top-5 Strategic Priorities: isolate environments and secure the network boundary; establish disaster recovery and encrypted backups; add proactive monitoring and a formal incident-response framework; build workload resilience and high availability through loose coupling and auto-scaling; and enforce data protection with centralized identity, least privilege, and an encryption mandate. To execute the isolation priority, VeUP proposed an AWS Control Tower landing zone for multi-account governance, separating prod/staging/dev into dedicated accounts and discrete VPCs to shrink the blast radius. A Cost Optimization Deep Dive reviewed Savings Plans coverage gaps on T-class/CPU-credit instances, right-sizing of P3 (GPU) instances used for an MLOps experimentation environment, Amazon S3 Intelligent-Tiering, snapshot hygiene, and outbound-traffic economics — including moving data-out through Amazon CloudFront rather than direct egress.

Production outcomes

KPI	Result
Production outcomes	A complete Well-Architected Framework Review — 57 questions answered, 43 high-risk and 14 medium-risk findings — distilled into a Top-5 remediation roadmap that the customer accepted; an AWS Control Tower landing-zone proposal to establish multi-account isolation and governance; and a Cost Optimization Deep Dive that surfaced an estimated ~$700/month saving by routing outbound traffic through Amazon CloudFront instead of direct egress, plus per-instance right-sizing and S3 Intelligent-Tiering reductions. The customer's AWS environment stayed healthy throughout.
Engagement window	The advisory cadence began in November 2025. By late February 2026 the customer had the full review, an accepted Top-5 roadmap, the Control Tower proposal, and the Cost Deep Dive in hand — and the relationship continues.
Cost / TCO posture	The Cost Optimization Deep Dive surfaced ~$700/month from a CloudFront-vs-direct outbound-traffic move (CloudFront materially cheaper data-out), plus per-instance right-sizing (e.g. ~$0.50/day per instance moving off T-class to an M6a instance), Savings Plans coverage gaps on CPU-credit/T3 instances, P3 (GPU) right-sizing for the MLOps environment, and S3 Intelligent-Tiering reductions. All figures are itemized estimates from the deep dive.
Lessons & continuation	For a workload that grew up in one account and one Region, the highest-leverage move is environment isolation via a Control Tower landing zone (dedicated prod/staging/dev accounts and VPCs) to shrink the blast radius. VeUP is tracking with the customer which Top-5 remediations have landed and what the realized total saving comes to.

AWS services in production

AWS Control TowerAWS Well-Architected ToolAmazon EC2Amazon RDSAmazon S3 Intelligent-TieringAmazon CloudFrontAWS Savings Plans

Architecture

The review's Top-5 remediations, drawn as one target architecture: an AWS Control Tower landing zone separating prod/staging/dev into dedicated accounts and VPCs, with centralized IAM least privilege, KMS encryption, Multi-Region DR and encrypted backups, EC2 Auto Scaling with RDS multi-AZ failover, proactive monitoring and incident response, and the Cost Optimization Deep Dive's CloudFront, Savings Plans, and S3 Intelligent-Tiering moves.

The Control Tower target state — dedicated accounts for prod, staging, and dev, with the review's Top-5 remediations built in.

What the review surfaced, pillar by pillar:

Operational Excellence

Proactive monitoring: KPI dashboards, alerts, runbooks
Formal incident response replaces client-complaint discovery

Security

The top-priority pillar — 43 high-risk findings tracked
WAF at the network boundary
Centralized least-privilege IAM; KMS encryption mandate

Reliability

Multi-region DR with defined RTO/RPO
Encrypted backups
Auto Scaling and RDS Multi-AZ end tight coupling

Performance Efficiency

Auto Scaling loosens compute coupling
GPU right-sizing for ML experimentation

Cost Optimization

Cost Deep Dive flagged a CloudFront outbound-route saving
Savings Plans gap and S3 Intelligent-Tiering
Per-instance right-sizing