Introduction to Site Reliability Engineering (SRE)
Site Reliability Engineering (SRE) is a modern approach to managing large-scale systems by applying software engineering principles to IT operations. Originally developed by Google, SRE focuses on improving system reliability, scalability, and performance through automation and data-driven decision-making.
At its core, SRE bridges the gap between development and operations teams. Rather than relying solely on manual interventions, SRE encourages building robust systems with self-healing capabilities. SRE teams are responsible for maintaining uptime, monitoring system health, automating repetitive tasks, and handling incident response.
A key concept in SRETraining is the use of Service Level Objectives (SLOs) and Error Budgets. These help organizations balance the need for innovation and reliability by defining acceptable levels of failure. SRE also emphasizes observability—the ability to understand what's happening inside a system using metrics, logs, and traces.
By embracing automation, continuous improvement, and a blameless culture, SRE enables teams to reduce downtime, scale efficiently, and deliver high-quality digital services. As businesses increasingly depend on digital infrastructure, the demand for SRE practices and professionals continues to grow. Whether you're in development, operations, or IT leadership, understanding SRE can greatly enhance your approach to building resilient systems.