Well-Architected Review and Remediation Program
Conducted a comprehensive AWS Well-Architected Review across all five pillars, then led a structured remediation program addressing critical security, reliability, and cost optimization gaps.
Industry
SaaS / Technology
Duration
6 months
Engagement model
Well-Architected Review and structured remediation program across all AWS pillars with ongoing governance improvements.
32%
AWS cost reduction
Zero
critical security findings
in follow-up review
4h
disaster recovery RTO
previously undefined
After rapid growth, the engineering team had accumulated significant technical debt in their AWS infrastructure. IAM policies were overly permissive, monitoring was inconsistent, no disaster recovery plan existed, and monthly AWS spend had doubled without corresponding growth in usage.
Client context: A fast-growing SaaS company had accumulated significant technical debt in their AWS infrastructure after rapid scaling, with security gaps, inconsistent monitoring, and escalating costs.
We executed a formal Well-Architected Review across all pillars, prioritized findings by risk and effort, and led a six-month remediation sprint. This included IAM policy hardening, centralized logging with CloudWatch and GuardDuty, automated backup strategies, and rightsizing of compute and storage resources.
Well-Architected Review
Conducted a formal review across all pillars — operational excellence, security, reliability, performance efficiency, cost optimization, and sustainability.
Finding prioritization
Classified findings by risk severity and implementation effort, creating a sequenced remediation backlog aligned with business priorities.
Security hardening
Implemented IAM policy least-privilege model, enabled GuardDuty and CloudTrail, and established centralized logging and alerting.
Cost and reliability optimization
Rightsized compute and storage, implemented automated backup strategies, and defined DR procedures with tested recovery targets.
32% reduction in monthly AWS spend
Zero critical security findings in follow-up review
Disaster recovery RTO reduced from undefined to 4 hours
Centralized observability across all production workloads
Architecture
- Centralized observability with CloudWatch dashboards and alarms
- GuardDuty and CloudTrail for continuous security monitoring
- Automated backup and cross-region replication strategy
Business Goals
- Achieve compliance with AWS Well-Architected best practices
- Reduce monthly cloud spend without impacting performance
- Establish security posture suitable for enterprise customer audits
Constraints
- Production workloads could not be disrupted during remediation
- Limited internal DevOps capacity for implementation
- Enterprise customer security questionnaires pending completion
Tech Stack
Services