SUMMARY

• Over 7 years of IT experience in Administration and Engineering of UNIX, Linux, and Windows Operating Systems.
• Experience in installing and upgrading OS on multiple operating environments like Red Hat Linux 4.5, 5.1, 6.2, and 6.5, AIX V5, V6, V7 p - Series, Ubuntu, SUSE.
• Expert in creating and maintaining user accounts, profiles, security rights, disk space, and process monitoring.
• Experience in installing and configuring web servers like Apache, Samba, FTP, SSH.
• Experience with virtualization products like VMware ESX 3.x, 4.x and Xen 3.x.
• Good knowledge and experience with networking concepts like TCP/IP, DNS, LAN/WAN, VPN, Hubs, Switches and Routers.
• Installing, configuring, and maintaining WebSphere application server, Samba, Apache/Tomcat, and Sendmail.
• Experience in working with different teams like Network Engineers, Database Team, and Application Team to resolve the issues and provide customer satisfaction.
• Experience in using automation tools like Puppet and writing scripts to update in Crontab.
• Experience in all levels of RAID configuration and management using various tools like Veritas Volume Manager.
• Installing and configuring Veritas NetBackup,Veritas Volume Manager and Veritas File System.
• Responsible for writing scripts for automation and testing the code using Perl and Korn shell.
• Installing and upgrading patches and packages on RHEL 4.5, 5.1, 6.2, and 6.5 servers using RPM and YUM.
• Modifying user’s password policies, group policies, UID and GID assignment policies.
• Experience in troubleshooting and resolving network issues related to servers.
• Expertise supporting and installing third party software on workstations.
• Experience in scheduling full backup and incremental backup for daily, weekly, and monthly basis, and worked in solving tickets issued on day to day activities and problems related to development and test servers.
• Expertise in implementing and designing backup and disaster recovery plan.
• Good experience with documenting software usage procedures, network diagrams, and project documentation.
• Excellent team building, project implementation, analytical, interpersonal, and communication skills.

TECHNICAL SKILLS

Operating System: RHEL 4.5, 5.1, 6.2, and 6.5, Centos 4/5, AIX, Ubuntu, SUSE, Windows XP

Web/Application Server: Apache, Tomcat

Cluster Server: Veritas Cluster

Languages: HTML, Bash, and Shell Scripting

Network Services: DHCP, Sendmail, HTTP, Samba, NIS, NFS, DNS, SSH, FTP, LAN, WAN, TCP/IP, TELNET

Virtualization: VMware and Vsphere

Storage: EMC Powerpath

Configuration Tool: Puppet, Python

Monitoring Tool: Nagios

Firewall: IP-Chains, Iptables, NAT

PROFESSIONAL EXPERIENCE

Confidential, Denver, CO

System Administrator (LINUX/UNIX)

Responsibilities:

• Responsible for installing, configuring, and upgrading Operating System on Red Hat Linux, Ubuntu, Cent OS and AIX.
• Installing, maintaining, and upgrading Red Hat Linux servers using Kickstart based network installation.
• Worked with VMware virtual center and VMware ESX server configured for Red Hat Enterprise Linux.
• Experience in configuring Puppet Server for monitoring as well as installing Puppet Agents in various servers.
• Experience in administering, configuring, and troubleshooting Veritas Volume Manager, File System, and Veritas Cluster Server.
• Responsible for preparing shell scripts for process automation, file system, hardware, and network alerts.
• Installing and configuring Veritas Netbackup 6.5 client on Red Hat Enterprise Linux 5.
• Responsible for creating various manifests and modules for automating tasks in Puppet.
• Participated in managing, designing, and implementing disaster recovery solutions.
• Performance management and tuning of RHEL.
• Installing and upgrading patches and packages on RHEL 6.2 and 6.5 servers using RPM, YUM and third party software applications.
• Experience in installing and configuring Samba server for Windows and Linux connectivity.
• Installing and configuring web servers like Apache, FTP, SSH, and NFS in Red Hat Linux.
• Experience in monitoring system performance and tune-up kernel parameters.
• Responsible for creating and managing backup policies, storage units, and recovery solutions.
• Monitoring disk space, adjusting VxVM configuration, and adding space when needed.
• Creating and monitoring user accounts, group administration, and maintaining file systems.
• Applying appropriate permissions for files and folders, and setting up quotas for the user accounts.
• Created volume groups, logical volumes, and file systems using LVM on Red Hat/AIX.
• Performed troubleshooting the network issues and provided response problems on UNIX and Linux servers.
• Experience in solving tickets issued on day to day activities and problems related to development and test servers.
• Planning, installing, and monitoring third party application software, patches, and packages.
• Responsible for scheduling full backup and incremental backup for daily, weekly, and monthly basis.
• Documenting the configurations and changes made on any part of the system and network.

Environment: Red Hat Linux 5.1, 6.2, and 6.5, AIX 5.3/6.1, Ubuntu, VMware ESX 3.5, Veritas Volume Manager, Veritas Cluster Server, Veritas Netbackup 6.5, Puppet, Shell Scripting, LVM, Apache, FTP, SSH, NFS, Weblogic 8.1, Samba

Confidential, Radnor, PA

System Administrator (LINUX/UNIX)

Responsibilities:

• Installing and maintaining Red Hat Enterprise Linux 5.1, 6.2, and 6.5, CentOS and SUSE.
• Installing and configuring hardware and operating system on UNIX and Linux platforms.
• Installing and configuring Red Hat Linux servers using Kickstart based network installation.
• Responsible for maintaining Red Hat and SUSE software upgrades and configuration.
• Providing support on UNIX/Linux platforms and troubleshooting any network, hardware, software applications, and performance issues.
• Responsible for Linux kernel tuning, performance maintenance, and troubleshooting activities.
• Deployed Puppet for automation in the non-production environment.
• Experience in designing and implementing backup and restore strategies using Veritas Net Backup 3.x, 4.5, and 6.5.
• Performed proper analysis of system resources like CPU, Memory, Disk and Swap usage
• Proficient in configuring data communication devices such as Cisco Routers, Switches, Digi Terminal servers and troubleshooting LAN and First Level WAN related problems.
• Experience working with VMware ESX server configured for Red Hat Enterprise Linux.
• Administered and configured Vertias Volume Manager and Veritas File System.
• Involved in installing and configuring monitoring tool like Nagios.
• Responsible for creating new users, groups and setting up their home directories, and appropriate access restrictions to files, directories and software’s.
• Responsible for preparing scripts for process automation and monitor system resources.
• Experience in using network protocols like TCP/IP, DNS, DHCP, NIS, NFS, SSH, SFTP.
• Installing and configuring Apache and Tomcat web server in Red Hat Linux.
• Involved in the design of Disaster Recovery plans for cold backup site.

Environment: Red Hat Linux 5.1, 6.2, and 6.5, AIX 5.3, CentOS and SUSE, Veritas Volume Manager, VMware ESX 5.1, Veritas Net Backup 3.x, 4.5, and 6.5, Puppet, Nagios, Splunk, Switches, Digi Terminal servers, Blade servers, LAN, WAN, TCP/IP, DNS, DHCP, NIS, NFS, SSH, SFTP, LDAP, Shell Scripting, Apache, Tomcat, AWS.

Confidential, Denver, CO

UNIX/Linux System Administrator

Responsibilities:

• Installing, configuring, and administering Red Hat Linux servers and AIX support for servers.
• Installing, maintaining, and upgrading Red Hat Linux servers using Kickstart based network installation.
• Responsible for preparing Perl and Korn scripts for AIX and Red Hat Enterprise Linux.
• Provided support in system management and administration of UNIX/Linux in a global environment.
• Installing and configuring Web/Application server Tomcat and Apache.
• Responsible for creating and monitoring user accounts, group administration and maintaining file systems.
• Responsible for applying appropriate permissions for files and directories in order to facilitate group collaboration.
• Experience working with VMware ESX server configured for Red Hat Enterprise Linux.
• Worked on troubleshooting tickets and user problems on various servers on different platforms.
• Participated with EMC Powerpath and SAN storage related issues.
• Created Volume Groups, Logical Volumes and File Systems using LVM on Red Hat/AIX.
• Responsible for configuring and administering Sendmail, testing the mail server.
• Installing and configuring SSH, NFS, DHCP, DNS, SMTP, and Apache on Linux servers.
• Planning, installing, and monitoring third party application software, patches, and packages.
• Monitoring disk space, adjusting VxVM configuration, and adding space when needed.
• Implementing high availability with Veritas Cluster server 4.1.
• Involved in installing and configuring monitoring tool like Nagios.
• Updating and monitoring patch software’s, firmware, and security patches for all applications in installed infrastructure.

Environment: Red Hat Linux 5.1, 6.2, AIX 5.1, 5.2, SUSE, Shell Scripting, Apache, Tomcat VMware ESX 5.1, EMC Powerpath and SAN, LVM, Sendmail, SSH, NFS, DHCP, DNS, LDAP, SMTP, AWS, Apache, VxVM, Veritas Cluster server 4.1, Blade Server, Nagios, Splunk.

Confidential, Austin, TX

Linux System Administrator

Responsibilities:

• Installed Operating System on Red Hat Enterprise Linux and SUSE.
• Analyzed and resolved diagnostic problems on Red Hat Linux and SUSE.
• Responsible for building and startup scripts, managing the automation of CRON jobs and managing file systems.
• Responsible for capacity planning, including storage, providing hardware and software redundancy, and planning future expansion requirements.
• Experience in installing software applications, upgrades/patches, and maintenance on Linux servers.
• Responsible for administering operating system, hardware, and peripheral components, and maintaining databases.
• Provided support for about 150 users located in different geographical locations in a 24x7 basis on Linux platforms.
• Enabled LVM for the management of volumes including creation of physical and logical volumes on Linux.
• Configured NFS, DHCP, DNS, SMTP and Apache.
• Responsible for administering and configuring Veritas Volume Manager and Veritas File System.
• Updating patches for Linux and Application servers to keep the servers updated with the patches.
• Installing and configuring Apache and Samba servers.
• Monitored overall system performance, performed user management, system updates, and disk and storage management.
• Maintained web servers, file servers, firewalls and directory services.
• Installing and configuring various software applications and packages like Apache, Tomcat, Weblogic.
• Responsible for analyzing performance of resources like CPU, Memory, Disk and Swap usage.
• Worked on configuration of server monitoring tool like Tivoli.
• Responsible for administering File System, creating and configuring LVM, RAID, troubleshooting and repairing file system.

Environment: Red Hat Linux 5.1, SUSE, Shell Scripting, LVM, NFS, DHCP, DNS, SMTP, LDAP, Apache, Samba, Veritas Volume Manager, Weblogic, Tomcat, Tivoli, Blade Server.

Confidential, American Fork, UT

Unix/Linux Administrator

Responsibilities:

• Installed operating system for UNIX and Linux servers.
• Performed software installation and provided maintenance on UNIX and Linux servers.
• Administered operating system, hardware, and peripheral components, and maintained databases.
• Responsible for updating patches and packages for UNIX, Linux and Application servers.
• Created new users, groups, and setup their home directories and appropriate access restrictions to files, directories, and software’s.
• Maintained user accounts file system and limit user account privileges.
• Experience in installing and configuring Apache and Samba servers.
• Installed and configured SSH and NFS to enable secure access to servers.
• Responsible for troubleshooting the network issues and responding problems on UNIX and Linux servers.
• Responsible for preparing Perl and Korn scripts for Red Hat Enterprise Linux.
• Worked closely with department heads in reviewing and designing new hardware installs and upgrades.
• Responsible for documenting the configurations and changes made on any part of the system and network.

Environment: Red Hat Linux 4.5, 5.1, SUSE, Windows XP, Shell Scripting, Chef, LVM, SSH, FTP, NFS, DHCP, DNS, Blade Server, Apache, Samba.