David Walker

David Walker Email and Phone Number

Sr.Systems Administrator at Lockheed Martin @ Lockheed Martin
David Walker's Location
Reston, Virginia, United States, United States
About David Walker

David Walker is a Sr.Systems Administrator at Lockheed Martin at Lockheed Martin.

David Walker's Current Company Details
Lockheed Martin

Lockheed Martin

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Sr.Systems Administrator at Lockheed Martin
David Walker Work Experience Details
  • Lockheed Martin, Inc
    Sr. Systems Administrator
    Lockheed Martin, Inc Jun 2009 - Present
    Manage/Support Large Air Force AFNCR network with over 400 servers and 12,000 users.Provide Active Directory management. User, Group, Security Policy, Print devices.Microsoft Exchange 2007 Support, mailbox creation, Organizational Mailboxes. BB Support.Automated scripting, server and workstation patching, Security compliance w/ DoDEnterprise Backups and disaster recovery utilizing COMMVault Software tools.Blackberry Enterprise server management.Microsoft Office Communicator (OCS) server support.Manage Microsoft Clustered file servers, SQL servers and IIS servers.Symantec & McAfee Antivirus Enterprise management.Support the Air force 744 Communications and Medical groups at Andrews AFB, MD.Support Helpdesk DSA’s and Military CSA’s as needed.Server health monitoring with Microsoft SCOM (System Center Operations Manager).Patch management using MS SCCM(System Center Configuration Manager).Print server management with the new Windows 2008 Print manager.Server builds from OS load, DoD Security STIGS, Application install.VMware virtualization servers. Manage ESxi Unix server and EMC Storage SANs.DHCP IP subnet management.Batch file, Visual Basic Script, and PowerShell, scripting experience
  • Lockheed Martin
    Sr.Systems Administrator
    Lockheed Martin Apr 2009 - Present
    Bethesda, Md, Us
  • Lockheed Martin
    Technical Support Representative
    Lockheed Martin Apr 2009 - Present
    Bethesda, Md, Us
    Provided 24-hour hardware/software support to customers. Resolved compatibility issues involving CPU BIOS’s, hardware resource setting, and software conflicts. Applied troubleshooting skills to isolate hardware failures. Answered questions regarding operating systems and applications, including DOS 6.22, Windows 3.1, WFWG, Win95, NT 4.0/3.51also many applications including the MS Office suite. Gained experience in interacting with customers directly. Sharpened phone skills. 2 years.
  • David G. Walker
    Sr. Systems Trainer/Analyst
    David G. Walker Apr 2009 - Present
    Assembly, installation, configuration, networking, troubleshooting, and testing of all hardware and software components of a worldwide State Department LAN, which includes NT servers and workstations running Oracle client/server products.Provide database conversions from older legacy systems to a ORACLE based database format. Consulted with State Deparment Officers to correct data integrity issues.Coordinate and conduct system administration and end-user training for Embassy staff, (ranging from 2 to 25 personnel), on Windows NT Administration, Microsoft Office, and Modernized Consular Affairs applications.Worked with Database developers to implement client change requests (CCRs) by assisting in the design of the PowerBuilder interface and testing of modified application.Provide both on-site and remote user support following training.Provide on-site support, and system and course evaluation after the training phase.Perform Y2K upgrades and training.
  • Asd, Inc
    Hardware Technician
    Asd, Inc Apr 2009 - Present
    Resolved failures in PC's and peripherals. Gained hands-on experience in identifying and correcting problems. Acquired many hardware certifications from leading manufactures.
  • Advanced System Development, Inc
    Network Engineer
    Advanced System Development, Inc Mar 2000 - Feb 2009
    Provide the client secure remote access to sensitive data through public web access.Implement encryption system for tracking, control, and integrity of secure devices.Provide training and documentation to client on remote access principles and procedures.Using remote software (Dameware), connected to client systems for remote help sessions.Managed VTC (Video-Tele-Conference) schedule, setup, and test for secure links for the DoD Joint Staff and Comptroller.Provide network administration support including account creation, Access control, and tape backup. Document in a SoP, Statement of Purpose format.Provide support to Tier I analysts for escalated client issues.
  • The Orkand Corporation
    Sr. Systems Support Analyst
    The Orkand Corporation May 1997 - Feb 2000
    Provide configuration control and support to the DoD Comptroller network at the Pentagon.Experience using “REMEDY” call tracking systems.Automate S/W installation using utilities such as Microsoft SMS, Symantec Ghost, Windows Group Policies and other custom designed programs to guarantee quality.
  • Government Technology Services Inc
    Integration Engineer/Specialist
    Government Technology Services Inc Aug 1988 - Apr 1997
    Responsible for ensuring orders are correctly integrated. Performed quality control checks on orders in sales order processing system. Acted as POC for sales to the service integration department. Assisted technicians in resolving hardware/software problems. 4 years.Developed automated software distribution system using Visual Basic and Borland C++.
  • Stephen'S Engineering Inc
    Communications Equipment Analyst
    Stephen'S Engineering Inc Jul 1987 - Jul 1988
    Part of a customer support team responsible for repair and maintenance of computer equipment for the National Guard Bureau. Provided software/hardware support and systems administration training for UNIX based Intel 310/320 systems and DOS based PC's and compatibles. Also provided software development in CP/M, MS-DOS, SCO UNIX using applications such as Lotus 123, Dbase III+, Enable, WordPerfect, MultiMate, iDis and XENIX products.
  • E-Systems
    Metrologist/Technician
    E-Systems Jul 1985 - Jul 1987
    Duties included repairing and maintaining all digital and computer equipment in the plant. Initially performed integration of new systems to troubleshooting and correcting problems with online diagnostics and test equipment. Learned techniques for repairing circuit boards, aligning disk drive heads, and preventive maintenance.
  • The Computer Group
    Computer Technician
    The Computer Group Sep 1984 - May 1985
    Independently performed repair and modifications to computer systems. Configured new systems and updated existing systems to latest company standards. Completed custom modifications prior to shipment.

David Walker Education Details

  • National Foreign Affairs Training Center
    National Foreign Affairs Training Center
    Law
  • Sun Microsystems Educational Services
    Sun Microsystems Educational Services
    Cerified
  • Control Data Institute
    Control Data Institute
  • Fort Hunt High School
    Fort Hunt High School
    H.S. Diploma

Frequently Asked Questions about David Walker

What company does David Walker work for?

David Walker works for Lockheed Martin

What is David Walker's role at the current company?

David Walker's current role is Sr.Systems Administrator at Lockheed Martin.

What schools did David Walker attend?

David Walker attended National Foreign Affairs Training Center, Sun Microsystems Educational Services, Control Data Institute, Fort Hunt High School.

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