Site Reliability Engineering (SRE) as a Service is a managed service model that enables businesses to contract out their SRE needs to a different service provider. Providers of SRE as a Service employ their knowledge to manage, watch over, and maintain the company's IT infrastructure and guarantee its dependability, availability, and scalability. As a Service SRE provides a variety of services, such as capacity planning, incident response, continuous monitoring, and performance optimization. Real-time data and analytics are also included, allowing businesses to spot problems early and fix them. By outsourcing the hard and time-consuming work of managing IT infrastructure to professionals, SRE as a Service enables enterprises to concentrate on their core business operations. SRE as a Service enables businesses to lower operational costs, enhance system performance and reliability, and raise customer satisfaction.