Expert systems analysis

Understand how complex systems fail—and recover.

Deep analysis of cloud incidents, cascading dependencies, recovery behavior, and the architectural decisions that keep critical systems operating under pressure.

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"Restoring the failed dependency is not the same as restoring the system."

Recovery paths deserve the same engineering rigor as failover paths.

Featured retrospective

AWS N. Virginia Region Service Disruption

Oct 19–20, 2025 · us-east-1
14+ hour impact • 10 service domains

A DNS race condition initiated the outage. Recovery pressure, accumulated work, and hidden dependencies extended the impact across DynamoDB, EC2, NLB, Lambda, and container services.

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What we examine

Beyond uptime percentages.

01

Failure anatomy

Trace the initiating event, dependency paths, and architectural conditions that turn local faults into widespread disruption.

02

Recovery engineering

Examine retry storms, accumulated demand, throttling, brownouts, and the behavior of systems returning to service.

03

Actionable architecture

Translate incident mechanics into practical design questions, testing strategies, and leadership decisions.

Consultancy & Advisory

Build resilient systems.
Before the next incident.

Expert consulting in fault-tolerant architecture, chaos engineering, and high-availability design for mission-critical applications.

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System Design Reviews

Architecture assessment for resilient, scalable systems. Identify single points of failure, cascading dependencies, and recovery bottlenecks before they impact production.

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Incident Analysis

Deep-dive post-mortems revealing root causes and actionable prevention strategies. Translate incident mechanics into architectural improvements.

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Chaos Engineering

Proactive resilience testing through controlled failure injection and game days. Build confidence in your system's ability to withstand real-world failures.

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Recovery Engineering

Design recovery paths with the same rigor as failover paths. Address retry storms, accumulated demand, throttling, and brownout behavior.

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Observability Strategy

Build monitoring and alerting that reveals system behavior under stress. Design dashboards and runbooks for effective incident response.

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Leadership Advisory

Strategic guidance for CTOs and engineering leaders on resiliency investment, team structure, and organizational practices for reliable operations.

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