Summary:

• Certified Linux/UNIX Administrator with over 14 years of systems administration experience.
• System Administration in RedHat Enterprise and Solaris UNIX systems.
• Working knowledge in IRIX, HP-UX, X10, AIX, and Microsoft Windows.
• Configured and managed Linux virtual disk Volume management software.
• Created and manipulated shell scripts as needed to automate commands for Linux and UNIX systems.
• Configured and tuned Solaris and RedHat Enterprise kernels.
• Have worked with the vendor EMC, to upgrade the IRIX OS, to Redhat Enterprise 5.5,
• Created and manipulated shell scripts as needed to automate commands for Linux and UNIX systems.
• Extensive us of Linux Veritas Volume Manager, and Redhat Linux LVM.
• Used multiple vendor backup software including IRIX NetVault, Linux Networker and Amanda.
• Initiated RedHat Security and monitoring in a wide area network setting.
• Possesses strong analytical and troubleshooting skills.
• Worked extensively with Team Leads assisting customers, and Developers.

Technical Skills:

• Operating Systems: RedHat Enterprise Linux, Solaris, IRIX, HP-UX, OSX, Windows Server, 95/98/NT/2k/XP/Vista, SunOS, AIX, VmWare, Virtualization, WAN/LAN administration.
• Tape Libraries/Storage Devices/Arrays include StorageTek, Overland, Sun JBOD, NetApp Filers, Dell Powervault, EMC, HP.

Professional Experience:

Confidential

Unix/Linux Project/System based Installer

Responsibilities:

• Work a Ticketing system that is used for a wide spread of responsibilities.
• I can be called on different duties, as defined in my experience below.
• I mainly fix systems, patch them, setup, diagnose and resolve any issues within the
• expected time in which I am given.
• I get calls from NASA, LAFB, and different Contracts.
• I also assist in Sub Contracts with companies that need assistance with Linux System
• configuration and Managing them.

Confidential

UNIX Administrator

Responsibilities:

• Performed UNIX system and network administration on large scale and mission critical servers
• Troubleshoot network issues to include DHCP, Static addressing, VPN clients, and domain connection.
• Used RedHat kickstart for qualified system setups.
• Maintained administration in a 24x7 on call production environment.
• Configured and tuned kernels in RedHat Linux Operating Systems.
• Entered commands and observe system functioning to verify correct operations and detect errors
• Setup equipment for employee use, performing or ensuring proper installation of cables, operating systems and appropriate software
• Refreshed PC, Linux Red Hat, and Mac at lease end to ensure 100 compliance with NASA
• Migration of user data and enforce encryption standards on computers that have sensitive government information.
• Setup and installed network and local printers
• Installed peripherals to include memory, sound and video cards
• Train new employees for new deployments and or troubleshooting.
• Troubleshoot Office, Windows, OSX and Linux/UNIX.

Confidential

Responsibilities:

• Worked a short term contract to patch systems for the DOD.
• Mainly created and manipulated scripts to find vulnerabilities and fix problems with security patches related to their systems.
• Upgraded and maintained systems to their full security and patch level standards.

Confidential

Senior UNIX Administrator

Responsibilities:

• Performed installation, configuration and maintenance for Solaris and RedHat systems.
• Install security updates, bridged UNIX to Windows environments, added printers, routers, firewalls and wireless devices to the network.
• Created and manipulated shell scripts for automation in the RedHat environment.
• Installed/configured and managed systems using SpaceWalk.
• Setup and maintained SAN devices with LVM and Veritas Volume Manager.
• Used Nagios to monitor networks.
• Experience with NIST guidelines
• Used RedHat kickstart.for qualified system setups.
• Tuned kernels in the Redhat environment.
• Monitor systems using TSM and NetApp utilities.
• Setup baseline systems using virtualization including Solaris Zones and ZFS file systems.
• Administered F5's BIG-IP load balancer with TMOS.
• Backup and restore using SAN and Legato technologies.
• Received CompTIA Security certification.

Confidential

Senior Systems Integrator

Responsibilities:

• Performed UNIX system and network administration on large scale and mission critical servers.
• Deployed multiple RedHat clustered environments.
• Installed and maintained NIS with YP in master and slave configurations.
• Setup and maintained Disk Shelf 42xx Filer F20xx systems.
• Used shell scripts extensively in different environments within UNIX and Windows systems.
• Upgraded, or downgraded as a matter of speaking , a EMC JBOD, from IRIX 6.x to Redhat 5.x.
• Administered through NetApp Data On Tap 7X Operating Environments.
• Maintained /administered internal and external multi-tier Apache SSL host networks, within a DMZ and specific dedicated ports.
• Setup and maintained NetApp with SAN, NAS, and iSCSI devices.
• Setup SAN/NAS devices with LVM and Veritas.
• Created and maintained scripts used with Nagios for monitoring.
• Automate process using csh, bash, ksh, bsh, and tcsh, to enhance administrative tasks.
• Extensive kernel tuning in Redhat and Solaris.
• Have used Data Management OnCommand Report and System Management tools.
• Exported multiple filesystems in a multi-tiered server environment with NFS.
• Created install scripts to automate RedHat kickstart installs, and initiate diskless clusters at bootup.
• Installed tuned SQL:2006, and assisted the DBA's, with their configurations.
• Maintained administration in a 24x7 on call production environment.
• Configured and tuned kernels in RedHat Linux Operating Systems.
• Synchronized Servers and Clients with NTP.
• Setup and maintained multiple DNS servers, overlapping when needed.
• Administered and maintained SAN and NAS technologies, extending to Enterprise Level RedHat.
• Used RedHat and Solaris virtualization to simplify System Administration deploys.
• Creation of Solaris Zones including ZFS files systems.
• Installed, maintained and administered Java based applications with JBOSS.
• Installed and maintained system failover techniques.
• Setup and maintained backups using Netvault with multiple backup schemas.
• Planned and led hardware and software migration and upgrade efforts.
• Performed system failure analysis through log files and used various recovery tools to ensure the consistency and integrity of the file system.
• Managed disk volumes with the use of Veritas Volume manager installed in RedHat.
• Familiar with NetApp volume, storage and management software solutions.
• Necessary to attend meetings with developers for a good Configuration Management Process.
• Installed and setup VmWare.
• Installed and troubleshoot all hardware in Enterprise Server level systems.
• Performed routine server maintenance, technical support and troubleshooting.
• Located bandwidth issues and security holes.
• Worked with developers to test ad deploy NASA-wide and department-wide applications in high availability environment.
• Provided simultaneous support for multiple projects.
• Implemented and edited shell/perl5.10 scripts and ksh/bash/csh/sh to automate daily tasks.
• Setup and maintained backup schemes with dump commands in cron, Legato Networker, cpio, NetWorker, Amanda, tar, Backup Exec, and NetVault.
• Created scripts, RedHat kickstart and Solaris jumpstart to duplicate systems.
• Upgraded systems using mainly automated techniques, and on the fly scripts to install patches.
• Tested systems and environments using ITSEC and TCSEC standards with CC/EALX.
• Performed Raid configuration and management using Zones, LUN's, and virtualization with NAS and SAN storage devices.

Confidential

Systems Engineer

Responsibilities:

• Provided UNIX system/network administration, engineering and programming support in a UNIX/PC environment.
• Received a Solaris Enterprise Computing certification.
• Supported and maintained the corporate intranet, which included the hardware, software and network configuration for software development, integration and testing activities.
• Administered user accounts, performed user maintenance on UNIX and PC workstations.
• Provided expert analysis of system architecture and design and made necessary modifications to facilitate system growth and capability enhancements.
• Supported worldwide system deployments for exercise, demonstration, training, and delivery.
• Installed and maintained operating systems, patches, and software.
• Installed and configured hardware/software suites, including Sun Ray, Sun Screen firewall and SKIP, DII COE based system, and Air Force TBMCS program.
• Performed daily/weekly/monthly backups, restoration of files.
• Monitored network performance and security issues.
• Administered system mail and internet access.
• Participated in technical meetings with customers and implemented divisional and corporate policies. Have tested Security using TCSEC standards with CC/EALX.
• Configured network file systems, automounters, license managers, NIS, routers, and DNS.
• Worked with classified computing and multi-level classified environments.

Confidential

System Engineer

Responsibilities:

• Provided UNIX systems administration for servers supporting science product generation, archival and distribution at the NASA Langley Research Center EOSDIS Distributed Active Archive Center DAAC .
• Maintained a high level of systems availability on a production environment.
• Provided assistance to internal and external customers on system configurations and upgrade plans.
• Performed preventative maintenance, problem analysis and systems monitoring.
• Coordinated systems maintenance with external entities.
• Performed routine backups and data recovery.
• Monitored network security and performance.
• Provided administration on HPUX, Solaris, SunOS, IRIX, AIX and NT/95/98.
• Integrated the communications between IBM compatibles and UNIX file systems and peripherals using Samba, Exceed and WinCenter.
• Managed file systems and directory services.
• Installed network hardware and software. Configured NFS, NIS, and auto-mount.
• Performed routine UNIX systems administration including system upgrades, user accounts and file system maintenance, peripheral installation, etc.
• Knowledge of DCE configuration and administration.

Confidential

Analyst LAN/PC Support

Responsibilities:

• Performed WAN/LAN administration.
• Managed PC LAN Students Lab.
• Created and maintained accounts, templates, and objects on Novell NetWare.
• Provided backup and file restoration on the LAN.
• Installed Network/PC hardware and software.
• Performed PC diagnostic and repair.
• Troubleshot and resolved customer problems