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From Senior to Staff Engineer
From Senior to Staff Engineer
1You don't prevent failure, you contain it2Blast radius: the method3Pattern 1 · Timeouts (bounds time)4Pattern 2 · Retry + jitter (the 81-calls math)5Pattern 3 · Circuit breakers6Pattern 4 · Bulkheads7Fail-open vs fail-closed, decide per path8Degradation modes9Worked incidents: solving the 2:14am case10Reliability you can't measure is a wish11Golden signals · RED & USE12SLI / SLO / SLA & error budgets13Pillar 1 · Metrics (the cardinality trap)14Pillar 2 · Logs15Pillar 3 · Traces & sampling16Pillars 4 & 5 · Profiling & wide events17OpenTelemetry & the investigation path18Alerting on symptoms & burn rate19Incident response & DORA20Production-readiness checklist + cost controlResilience PatternsObservability & SLOsADR #3: Capstone DecisionSystem Design Document
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Reliability and Operability

Pillar 2 · Logs

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PreviousPillar 1 · Metrics (the cardinality trap)
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