Darrell D. Dunn
San Antonio, TX *8253
832-***-**** (cell)
ac7gj1@r.postjobfree.com
Professional Summary
Information Technology Professional with 17 years of experience in System Engineering/Administration and Service Desk Management functions. Highly motivated individual with outstanding leadership, team member and customer service skills, also with thorough knowledge and experience of Information Technology operations.
JOB-RELATED CERTIFICATES AND LICENSES: ID 7213520
MCITP-Microsoft Certified Information Technology Professional-Windows Server
MCITP-Microsoft Certified Information Technology Professional - Exchange
MCTS- Windows 10, 8,1
MCTS-Windows Vista
MCP
Info Work Space Certified (2.5x, 3)
Skills and Knowledge:
System/Server Support, Desktop/Helpdesk Support, ESXI 6x, VMware
Server Builds/Maintenance, Exchange, Outlook, Lotus Notes, SharePoint
3650 Catalyst Switches, Small Business Switches, Internet Information Services (IIS)
Various types of Backups & Restore, Storage, Dell and Hitachi, Backup Exec, VPN, NetApp
Active Directory, Security Groups, Group Policy Management
Various Server Builds, Remedy ARS Altiris, CentOS, Ubuntu
Various types of Antivirus, MacAfee, Sophos, PowerShell
DNS, DHCP, WSUS, LAN, SAN, VSP, Blackberry Configuration, iPhone
TCP IP Configuration, Network Protocols, SSH, Telnet
RAID Configuration Collaboration Applications/Tools
MS Office 2010-2016, Office 365; Windows Server 2008/2012/2016; SQL 2008/2012, Windows 7, 8.1,10, SCCM
Job History:
Root9b LLC
310 Saint Mary’s St. Suite 1600
San Antonio, Texas 78205
Dates Employed: Nov 10 2015 – Current
System Engineer
Manages Active Directory; Group Policy Management
Manages Office 365, licensing, accounts and administration; exchange and SharePoint
Manages EXSI 6x VCenter and Hypervisor and Virtual testing for software and applications; Windows, CentOS and Ubuntu OS’s
Manages company MobileIron Cloud for iPhone 7/8/10 devices
Manage Atlassian Suite server and apps (Jira, Confluence, Stash, Bamboo)
Agent for DEP and VPP to Apple device services
Provides logistical support for company training environment and infrastructure
Manage Company Duo 2FA Factor for various applications
Manage Cisco Call manager hosting cisco VoIP phones
Monitor Service Desk tickets/incidents through Fresh Service
Manage Atlassian Suite applications; Jira, Confluence, Bamboo, Stash
Create and manages user account and distribution/security groups
Built and maintains company training mobile kits; ESXI 5.5, 6.0, 6.5
Configured and Deployed workstations/laptop to company personnel; provides technical support to clients using, Windows 8.1, 10 and Mac Air Books
Utilized Wireshark for network analyzing
Provides Windows scripting/automation
Troubleshooting Printers, wireless cisco AP’s and routers, switches, scanners
Provide support for personnel both hands-on and remotely from 6 different sites
Monitor 2012 SQL DB (backend) for company financial infrastructure
Supports wireless LAN (Cisco)
Provided some administering monitoring of Cisco 5515/5525 ASA
Anti-virus and anti-malware (Sophos)
Coordinates with Vendors for Tech Refresh and software management
Provides administration for 3650 Catalyst switches and SG100-26/200-50 Small Business Switches
Americable Japan
Yokosuka Naval Station, Yokosuka Japan
Dates Employed: Mar 2013 – Sep 2015
System Administrator/Customer Support Technician
Assisted customers with Cable and Internet activation AmeriCable for the naval station for 35 users and 15 Dell/HP/CCTV for live feed; provided troubleshooting steps to customers for cable and Internet
Maintains support for company servers (Dell and CATV)
Configures Outlook (Office 2010); manage Active Directory accounts; Manage Group Policy-- Administers user configurations
Maintain SAN CISCO with 2 terabytes
Create File shares/ Administer file servers in DELL
Wireless configurations (Aruba)
TCPIP configurations
Provide support for Service Desk operations for 24x7 operation monthly on call rotation
configured multiple software applications-MS Office and cable propriety applications
Build Workstations/laptops/docking stations etc. (Windows 7/8)
Provided support for printers, copiers, scanners; provide support for LAN
Katalyst Data Management
1888 Stebbins Drive
Houston, Texas 77043
Dates Employed - Oct 2011 – Dec 2012
Senior Windows Systems Administrator
Active Directory administration; Provide Group Policy Management
Manages Microsoft Exchange Server 2007
Manage Microsoft Volume License
VMWare managed (2 servers on Windows users CO & Canada virtual testing for software and applications) then deployed over to VDI environment.
Creates and manages user account and distribution/security groups
Built and maintains company servers; Managed and maintain Windows Server 2003, 2008
Configured and Deployed workstations/laptop to company personnel; provides technical support to clients using XP Professional, Vista, Windows 7
Sql 2008
Provided Windows scripting/automation
Troubleshooting Printers, wireless routers, switches, scanners
Provided support for Blackberry Services
Monitored Hitachi VSP
Utilized Wireshark for network analyzing
Supports wireless LAN (Cisco)
Anti-virus and anti-malware (Symantec)
Managed VMware Administration
Coordinated with Vendors for Tech Refresh and software management
Provided some UNIX administration (Linux, Solaris) as well as Windows 2003, 2008
The Woodlands Township
2201 Lake Woodlands Drive
The Woodlands, TX 77380
Dates Employed 1 July 07 – 18 July 2011
Helpdesk Manager/System Administrator
Supervises technical team and provides technical support to client : XP Professional, Vista, Windows 7
Installed and Deployed Windows 7 to over 400 personnel; Manage and maintain over 500 personnel with Windows 7 and Vista operating systems
Manage Heat tracking database for helpdesk tickets
Responsible for annual Tech Refresh
Administer SharePoint Server 2007
Builds and maintains company servers
Utilized Wireshark for network analyzing
Manages Altiris Server for software deployments and updates
Managed Exchange Management Console in Exchange 2007
Creates and manages user account and distribution/security groups
Management of Blackberry Enterprise Server and provides support for blackberry device users
Administers Cisco Call Manager Console/Unity Voicemail
Manages Exchange 2007environment
Supports and manages Symantec Backup Exec 11d, 12 backup and restore systems
Manages various software install on a daily basis
Configures IIS
Coordinates with vendors on pc refreshes and parts replacements
Manages inventories on entire company hardware, software and other equipment
Provides technical supports Mobile Data Computers (Panasonic tough books) for Fire Engines and Fire trucks
Configures and supports Air Link Modems in fire engines/trucks/apparatus
Provides technical supports and installs E-route Tracker software for entire
Troubleshoots and rebuilds Dell PCs (hardware/software)
Supports wireless LAN for (Aruba)
Provides technical support for The Woodlands Recreation/Parks and Wildlife/Environmental Services/Aquatics, LAN and wireless Manages and provides technical support at The Woodlands 12 pool locations (wireless)
Provides additional support for Windows 2003/2008 server platforms
Printers, wireless routers, switches, scanners, cameras, card readers, plotters, etc
Administer bluecoat proxy
Assist with annual budget for IT Department
Responsible for over $200,000 of Computer and related equipment
General Dynamics Advanced Information Systems (AIS) DOD
7025 Harbor Blvd Suite 101 Suffolk, VA 23434
Dates Employed: 04-2003 - 04/10/2006
Collaboration Tools Apps/System Administrator
Technical lead for implementing and deploying collaborative tools for U.S. Joint Forces Commands (USJFCOM) J9 directorate (Experimentation and Engineering), the 4 services and our Multinational partners.
Implemented and Applied Collaborative Applications; IWS v2x3x, SharePoint (SPS 2000/3)
Administered Active Directory/Group Policies
Served as Windows Server Administrator (2000/2003) for several major DOD exercises and Events
Administered MMC
Applied and configured IIS Web services to Collaborative Tool applications
Applied IPlanet Web Services to on Windows Based and Solaris Based Collaboration applications
Applied SSL Certificates to all assigned servers
Trained client personnel on Applications
Managed Exchange Server (2003)
Implemented and served as Domain Administrator for domain suites
Configured RAID
Various server builds on Dell 6450/ 6650 Power Edge
Cisco Router configuration/Switches/hubs
Configured TCP IP
Configured DNS Configured IIS
Consulted with clients (DOD and Multinational)
Provide Technical and Help Desk Support (Remedy ARS)
Built and administered 4 Linux and Solaris 8 servers running collaborative applications
Served as liaison for with Multinational client network admin personnel for network and firewall requirements and configuration
Implemented and designed domain configuration on unclassified and classified networks
Uses the STIG process for security and permissions and applies Symantec Norton Antivirus before servers are scanned by network security personnel. Responsible for performing weekly backups for assigned servers
Applied Symantec Norton Antivirus before servers are scanned by network security personnel
Provided daily/weekly Backups for assigned servers
10 years of U.S. Army performing in various IT and Administrative positions
EDUCATION:
ECPI College of Technology, Richmond, VA 23236
Associates - Computer Information Science/IT Networking (Feb 2003)
Currently attending University of Maryland – Advanced Project Management (IT)
SUPPLEMENTAL INFORMATION:
Great leadership and team member skills
Works well in high stress environments
Motivated
Strives on challenges
Great troubleshooting skills