The mission of SRE (Site Reliability Engineer) team is to ensure the efficient and sustainable operation of the Shopee 24×7, and to build and maintain large-scale, highly available, high-performance distributed systems based on system availability and performance. It is formed by combining traditional software engineering and technical operation. The SRE team needs to dive deep into the Shopee development lines to ensure that the system is highly scalable under rapid evolution of the System. From the perspective of stability and performance, it includes the design of business development, components of the basic platform (middleware, container scheduling, caching, object storage, etc.), OS optimization, data center and network optimization. We optimize the inefficient and complicated operation in the traditional operation and maintenance mode through engineering and service means, and are committed to building a sound monitoring system to improve the efficiency of incident handling.