7+ years experience in Amazon Web Services(AWS), Microsoft Azure, Google Cloud, Aliyun, Tencent Cloud, Windows Desktop / Server, Unix/Linux(RedHat/CentOS/Ubuntu/Debian) systems engineering/administration;
Experience in a web hosting environment management(PHP, Python, Ruby on Rails, Java/JSP, ASP.NET);
Automation, DevOps;
Understanding of network protocols & services (HTTP/HTTPS, TCP/IP, DNS, SSH etc);
Knowledge of web engines & Load Balancers (Apache, LVS, Squid, Nginx, Redis/Memcached, Docker, CDN);
Familiar with database (MySQL - Configuration, access control, cluster/replication, tuning)
Familiar with version control systems: Git and SVN.
Scripting/data manipulation: PowerShell, Perl, Bash, Ruby, Python, Awk, PHP, etc.
Understanding of configuration management tools and principle;
Good troubleshooting skills;
SharePoint;