System Hardening & Patching: Apply CIS benchmarks to Linux Droplets, manage SSH key access and bastion hosts, and execute timely OS and software patching to meet strict PCI SLA deadlines.
Quality issue analysis: Coordinate the team, use tools such as 5Why, fishbone diagram, and 8D report to conduct root cause analysis on customer complaints or internal non-conforming products, formulate corrective and preventive measures, track and verify the closed-loop effect, and write reports.