With 7 years of experience as an infrastructure monitoring expert, I have successfully managed Kubernetes environments scaling up to 5,000 nodes and hundreds of thousands of pods on AWS EKS. I have engineered service-level indicators (SLIs) and maintained service-level objectives (SLOs) that ensure 99.99% availability and API latencies below 1 second at the 99th percentile, even under high churn rates of 50 pods per second. My proactive monitoring and automation efforts have reduced Mean-Time-To-Resolution (MTTR) by 40%, significantly improving uptime and customer experience. Additionally, I have driven over 60% cost reductions in monitoring and operational expenses by optimizing cloud resources and observability pipelines. These outcomes have been achieved through integrated monitoring stacks using Prometheus, Grafana, Splunk, and OpenTelemetry, enabling rapid root cause analysis and business continuity.