EMPLOYMENT HISTORY:

Confidential, McLean, VA

Senior Unix/Linux system administrator

Responsibilities:

• Administering Virtual environment using VMware vSphere 5.5 setting up Virtual Machines, servers, migration, backups, clone, snapshot, network, data stores and move.
• Upgraded ESX server, vSphere client
• Administering NetApp cluster mode, Data ONTAP 8.3.2P6 Setting up V - server, volumes, export policies, rules, network connections, snapshot, failover, Data ONTAP upgrades, and more.
• Administering backup system using NetBackup, maintaining tape libraries, restoring data and more.
• Administering Linux servers and workstation. Upgrading OS version, and packages. Setting up users account, monitoring and troubleshooting any issues with Linux servers.
• Administering Solaris servers, Nis accounts, users account, performance, and up to date packages. Administering zones setup and maintenance.
• Hand-on experience on Configuration Management Tool Chef & Puppet for automation process.
• Administering Hitachi and Sun storages, storage space, maintenance, disk replacement, and allocation.
• Used host level firewall, network firewall to improve the network/hosts security
• Upgrading and administering different applications such as Clear Case
• Setting up thin clients, SRS accounts, user’s accounts, LDAP accounts and more.
• Administer infoblox to assign IP addresses, and DNS server.

Confidential, Bethesda, MD

Senior UNIX Systems Administrator

Responsibilities:

• Administering Virtual environment using VMware vSphere 4.1. Setting up virtual servers. Monitor, migrate, backup, clone, and snapshot virtual machines.
• Working with NetApp to schedule backups, setup partitions and allocate space for servers.
• Build system repositories for package management of Red hat and Centos. Set up baseline server.
• Install, patch, and upgrade Operating systems such as Red hat, Centos, and Solaris.
• Manage DNS entries, NIS accounts, RSA secure ID, and pam authentication.
• Use Big IP software to setup VIPs, Rules, and Pools to manage our servers and network setup.
• Use Nagios monitoring tool to monitor servers and application performance.
• Install configure and maintain applications such as Apache, Tomcat, JBOSS, LDAP, teamforge, Vivisimo search software, and more.
• Wrote scripts and evaluated Puppet as configuration management.
• Work closely with clients to design and implement new projects and requirements.
• Work with other admins to migrate all Solaris servers to Linux environment.
• Creating and set up custom yum packages to facilitate installation and management of packages in our environment.
• Use spacewalk to manage Linux systems.
• Received many training. Recent trainings include: NetApp ONTAP 7, 8 administrations (3/26/2012) and VMware 4.1 (5/24/2011)

Confidential, New York, NY

Linux/Apache tomcat/System Administrator

Responsibilities:

• Member of Video Product Services, responsible for video portal and media player properties.
• Worked with development and product teams to ensure system architect, design and efficiency.
• Used metrics and monitoring tools such as Argus, Toga, Keynotes, and netcool, to determine impact of application changes to the overall stability and performance of large-scale projects.
• Setup Linux and Solaris servers including operating systems install/upgrade, package install, NFS, iptable, kernel/firmware upgrades, server access, and user accounts.
• Transitioned hosts from Solaris to Red Hat Linux and CentOS to reduce cost.
• Implemented “clone” migration approach.
• Leveraged rapid server consolidation for cost, labor, space, power, and scaling efficiency.
• Extensive knowledge on firewall, WAN, LAN, VIP, and GSLB.
• Architected, installed, configured, and administered Apache/Tomcat web servers.
• Installed and configured Oracle and Sybase databases.
• Worked with DEV and QA teams to migrate websites from AOLserver to Apache.
• Setup test environment for developers and QA teams to test the codes before production installation.
• Trained new team members.
• Documented all setup and processes of projects.
• Used Akamai and Netscaler technologies on websites.
• Experience in setting up and maintaining DNS and DHCP

Confidential, Vienna, VA

Senior Unix/NT/Firewall/Mail Administrator

Responsibilities:

• Installed, configured, and administrated Check Point Firewall on Solaris servers.
• Administered company wide mailing system (Unix Sendmail)
• Performed backups of all servers using Legato Backup Software.
• Administered external and internal DNS servers. Installed and configured BIND.
• Administered Solaris Server: Setup accounts, upgraded hardware and software, installed patches.
• Install and configure different DHCP pools
• Administered Portal server and financial software applications of company.
• Created domain accounts, server accounts, performed backups, and troubleshoot network connectivity.

Confidential, McLean, VA

Unix Administrator

Responsibilities:

• As a Unix and NT administrator, maintained development environments for over 400 users using different operating systems such as Solaris, HP UX, AIX and Windows NT.
• Purchased, installed, and maintained HP UX, Solaris, and AIX servers.
• Performed routine Unix administration tasks such as maintaining user’s account, backups, monitoring system activity, system space and etc.
• Tuning kernel on all servers and installing following software: Oracle, Sybase, Micro Focus, ARC serve backup agent, Cobol/C/C++ compilers, Jet admin, Netscape and others.
• Creating weekly boot disk for HP and AIX servers
• Creating logical volumes and volume groups on all servers.
• Using Raid 5 and mirroring on disk drives.
• Providing documentation on all servers and operating systems.

Confidential

System Analyst

Responsibilities:

• Provided technical assistance and support for U.S. “Transportation Operation Personal” with customers based on over 300 sites around the world.
• Provide technical assistance to military sites working on Transportation Operational Personal Property standard system around the world
• Maintenance, upgrades, support and troubleshooting Solaris servers.
• Administration of network connectivity between headquarters and other sites.
• Troubleshooting and configuring Cisco routers, Xyplex terminal server, AT&T modems and Lexmark printers.
• Administering Oracle, creating table spaces, dropping tables, exporting and importing tables, and adding users to the system.