Building a Culture of Reliability: Beyond the SRE Handbook

You Can't Hire Your Way to Reliability I've seen companies hire 5 SREs and expect reliability to magically improve. It doesn't. Reliability is a cultural outcome, not a headcount metric. The Reliability Maturity Model Level 1: Reactive "Things break, we fix them." No SLOs, no error budgets, post-mortems are optional. Level 2: Aware "We know what's breaking and how often." Basic SLOs defined, post-mortems happen, on-call exists. Level 3: Proactive "We prevent most issues before they happen." Erro