Site Reliability Engineering (SRE) merges software engineering with IT operations to deliver scalable, resilient, and efficient systems. It prioritizes automation, observability, and proactive monitoring, using SLIs, SLOs, and error budgets to balance innovation with stability. Core practices include incident management, CI/CD automation, infrastructure as code, and advanced observability with logs, metrics, and traces. Reliability is reinforced through redundancy, load balancing, auto-scaling, disaster recovery, and capacity planning. Emerging trends—AI/ML-driven predictive maintenance, anomaly detection, and cross-cloud automation—extend SRE’s role across industries, ensuring consistent performance in complex, distributed environments.

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