1. David E. Johnson Sr.
11239 Kilberry Way
Parker, CO 80134
303-875-9235
odin59@comcast.net
TECHNICAL QUALIFICATIONS
 Citrix Certified Advanced Administrator Xenapp 6.5 (CCAA)
 Citrix Certified Administrator Xenapp 6.0 (CCA)
 Microsoft Certified Professional (MCP)
 Microsoft Certified Desktop Support Technician (MCDST)
 A+ Certification
 Security+ Certification
 Advanced proficiency with Microsoft Office 98, 2000, XP, 2003, 2007 and 2010
application suites, including Microsoft Access database design and application
programming, Excel spreadsheet design, Power Point presentation design, Visio drawings,
Project implementation and Outlook configurations.
 Proficiency in multiple Operating System, including Windows 3.11, Windows 95,
Windows 98, Windows NT, Windows 2000, Windows ME, Windows XP, Vista, Window
7, Server 2003, Server 2008 R2, Server 2012 and XenServer.
 Backup management using Symantec Backup Exec 2010 R3.
 Filtering web activity using Websense Triton Unified Security Center.
 Proficient with deploying, cloning and migrations in VMware including P2V.
PROFESSIONAL EXPERIENCE
 Jones International University 02/2010 – Present
Windows Systems Administrator for a large Server 2003 / Server 2008 / 2012 mixed
enterprise network. Built 2 new Citrix Xenapp 6.5 farms consisting of 16 servers, published
all installed and streaming applications. Maintain all software upgrades in both farms.
Administer DNS, DHCP, file servers, print servers, Exchange 2010, Active Directory,
VMware, Xen Center, ImageNow, Web filtering, McAfee Antivirus, Cherwell ticketing
system, Spiceworks, Solarwinds, Group Policies, change management and Tier 3 support.
 Westwood College 06/2008 – 02/2010
Corporate / Campus System Administrator for a large Server 2003 network environment.
Maintained Active Directory, creating OUs and GPOs. Build and maintain Server 2003
servers. Set up and configure networks for 2 additional 100 user sites. Configure and
deploy Polycom IP phone system at both sites. Create and maintain entire library of Ghost
images. Overall troubleshooting and repairing a wide variety of hardware and software
issues.
 3t Systems Inc. 08/2007 – 03/2008
Desktop Support / System Administrator for internal users in a large Server 2003 network
environment. Maintained Active Directory, creating new users, OUs and GPOs in a forest
consisting of multiple domains. Maintain Citrix environment. Build and maintain Server
2003 servers in the Data Center. Created entire library of Ghost 8 images and maintained
them. Used Microsoft CRM for ticket tracking and billing. Configure, maintain and deploy

2. David E. Johnson Sr.
11239 Kilberry Way
Parker, CO 80134
303-875-9235
odin59@comcast.net
Cisco IP phone system. Overall troubleshooting and repairing a wide variety of hardware
and software issues. Configure and maintain Blackberries, BES server, Smartphones, test
environments and development environments.
 Pulte Mortgage LLC 07/2005 – 06/2007
Tier II Technician for customers across all internal departments and remote users. Duties
include maintaining Active Directory, desk-side troubleshooting for both Compaq desktop
and Dell laptop users in a large network environment using the Clarify application as a
tracking device. Build and maintain Server 2000 and Server 2003 servers. Assuring
network connectivity and functionality as well as TCP/IP and dial-in remote access
protocols. Overall troubleshooting and repairing a wide variety of hardware and software
issues. Configuring Blackberries, test environments and development environments.
 TekSystems 11/2000 – 06/2001
Contract positions at 360 Networks, Ernst & Young and ICG Communications performing
Desktop Support role including, Windows NT to Windows 2000 migrations and Ghost
imaging of IBM, Dell and HP laptops and PCs.
EDUCATION
 University of Phoenix 06/2003 – 08/2006
Bachelor of Science Information Technology
 Westwood College of Technology 08/2001 – 04/2003
Networking
MILITARY SERVICE
 United States Air Force 1978 / 1982