Job requirements: 1. Familiar with Linux operating system, maintenance and optimization of server systems, with the ability to independently design and build network and system architectures; 2. Familiar with various public cloud technologies (familiar with Amazon AWS, Alibaba Cloud preferred), with experience in online configuration and usage; 3. Familiar with common application configurations and optimizations, such as Nginx/Java/Tomcat/Hyperoxy/MySQL/Redis/ftp, etc; 4. Familiar with commonly used monitoring systems such as Zabbix, Nagios, and Prometheus; 5. Familiar with building commonly used development environment platforms, such as Jenkins, Wiki, SVN, Git, GitLab, Jira, etc; 6. Familiarity with scripting languages such as Python and Shell is preferred for development. 7. Familiarity with exchange operations is a bonus.