1. Experience with Linux System Administration and trouble-shooting (RHEL, Centos, Ubuntu) 2. Experience with configuring, supporting KVM based virtual environments 3. Experience with migration of virtual environments 4. Should have hands-on experience in network troubleshooting and Nagios monitoring 5. Knowledge on File System and structure for OS. (Windows and Linux) ext4 and NTFS 6. Hands on experience in AWS and Chef is a big plus 7. Knowledge on NAS, SAN and all other network file system. 8. Basic knowledge of hardware. Should Know how to set up, configure and use nameserver 9. Good communication skills (MUST) 10. Prior experience of working with US clients in shifts is an added advantage.