 Knowledge of Installation and configuration on RedHat, Centos, Ubuntu, and Windows7. Monitoring & managing server’s performance for optimization. Managing File System with RAID & Logical volume Manager (LVM). Handling file permissions related issues like Set, SetGID, Stickybit, ACL. Managing Swap Space and handling swap related issues.  Kernel Upgrading and installing patch and Troubleshoot kernel issue. Network configuration by bonding, Network Bridge & setting up the multipathing. Expertise in handling User and group Administration. Managing System Security using IPTABLES, and SELinux. Having the knowledge of configuring different servers (FTP, WEB, NFS, SAMBA, Send mail & Autofs). Installing and managing Apache Server and managing Virtual Webhosting. Good understanding on IP Networking. Managing Package by using rpm & yum server, configuring Repository. Knowledge in booting and shutdown procedure. The primary responsibility is to carry out day-to-day tasks of System Administration and Monitoring and updating Tickets (issues) through Incident management system. Understanding of Backup Tool like Symantec NetBackup. Knowledge of Veritas cluster server for high availability. Works on NMS & SNMP. Hands on experience of Core JAVA and Android Development. Better understanding of RPA (Robotic process automation) and enhancing as well through self-learning. Hands on experience of Shopify CMS.