Strong Experience on Linux is Mandatory.
Experience with AWS (EC2,RDS,Cloudfront,CDN, S3 etc.), Web hosting, DNS Management, Virtual Hosting.
Should have strong OS administration, Managing User / Group Administration skills on Linux.
Experience of Linux Systems. Installation, Configuration and maintaining services of LAMP setup (Linux, apache, MySQL, php).
Experience about managing DNS, Name server configuration.
Experience in Software and Patch management, Monitor system performance, Troubleshoot Fail issue.
Set the infrastructure monitoring, backup reporting, and website monitoring alerts.
Infrastructure and Application monitoring across production and non-production platforms.
Familiar with the fundamentals of Linux scripting languages (basic shell scripting Exp: Backup, monitoring the servers, etc.).
Should know how to debug/troubleshoot hard disk, memory issues.
Familiar with the configuration and maintenance of server and network hardware and peripherals.
Setup security policies for users.
A system admin must have a strong grasp of computer, website security (. firewalls and intrusion detection systems).Implements backup and restore management process for Database, Applications, File system.
Analyze and diagnose system failures recover and restore operating systems and file systems
Knowlege on Zabbix is added advantage
AWS Certification will be preferred
Red Hat Certification will be preferred