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Wally: 30% AWS cost savings with Well-Architected Review

30% AWS cost savings

The challenge

Wally needed to evaluate its architectures and implement designs that scale over time. The AWS bill was growing and clarity on what to optimize was needed; security posture also required review.

The solution

We executed a complete AWS Well-Architected Review (6 pillars: operational excellence, security, reliability, performance, cost optimization, sustainability). We identified specific gaps with prioritized remediation plan, and accompanied implementation.

Results

30%
Cost savings
Workload intact
Closed
Security gaps
Critical remediated
Automated
Scaling
Auto-scaling configured

Wally cut 30% of its AWS bill while keeping the existing workload intact — just applying rightsizing, Reserved Instances, waste elimination and specific workload re-architecture. Security posture went from notable to excellent.

"The Well-Architected Review we executed with Caleidos allowed us to identify several improvement opportunities on our infrastructure management. With this information we could optimize infrastructure costs, close critical security gaps, and apply best practices to have a much more scalable and robust platform."
José Manuel Trigoso CTO, Wally POS

Tech stack

AWS Well-Architected ToolAWS Cost ExplorerReserved InstancesAuto ScalingAWS Security Hub

Duration: 6 weeks

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