Leo Yitian Liu

Site Reliability Engineer @SHEIN

CA, US

Contributing to the reliability and availability of the system- Archived high availability by setting up multiple Redis instances across different availability zones in multi-cloud environment- Enhancing system reliability and availability by achieving uptime of 99.998% through on-call duties, responding to alerts, and conducting system tests, drills, and exercises- Improving incident response and resolution to minimize downtime and impact by meeting SLA goals of MTTA < 1 min, MTTD < 5 min, MTTR < 10 min, managing incidents, and tracking CPU utilization for the Amazon Elastic MapReduce (EMR) cluster- Optimizing system performance and scalability by planning capacity, exercising scaling, and ensuring system efficiency- Fostering SRE team development and collaboration to drive system reliability and innovation through reviewing change notifications and presenting knowledge transfer sessions- Driving continuous improvement and innovation in SRE practices by reducing toil and collaborating with cloud vendors like Azure to resolve infrastructure issues.Remarkable Projects Massive scale cloud disk replacement Adapting Microsoft Azure disk price changes, analyzing disk space requirements of different services, replacing the disks in a way that does not interrupt production services and automating the intensive manual operations during the process. The project saved the company tens of thousand dollars every month. Network Security Group analysis and operation tools Building a python software application to help with managing a large number of Azure network security group configuration analysis and operations. Enhancing the accurate and efficiency of operations. Saving money and reducing time consumed to inspect and update network settings. Making network improvement without interrupting any production services.

The University of British Columbia

Bachelor of Applied Science (B.A.Sc.)