David Duff

Mobile Phone: 678-***-****

E-mail: acy226@r.postjobfree.com

DAVID ALAN DUFF

**** ********* ***** **. ******, Georgia 30084 678-***-**** e-mail: acy226@r.postjobfree.com

SUMMARY OF QUALIFICATIONS

Intrinsically motivated, self-directed, results oriented, and highly collaborative IT professional with over 10 years experience in database administration, network infrastructure, wireless and wired networking, training, implementation, vendor management, systems management, and customer service.

CERTIFICATIONS

A+, Network+, MCDBA, Oracle DBA, Security+, MCP

OFFICE PRODUCTIVITY – EXPERIENCE & KNOWLEDGE

Microsoft Office Suite- Word, Access, Project, Excel; ONYX, Siebel, MXP, Virtuoso, Linux, Unix, SQL 2000/2005/2005 Express, DHCP, DNS, WINS, IOS, VBA, Print Server, FTP Server, Exchange, Lotus Notes. Operating Systems- W2k Prof/2000/Advance Server/XP/XP Pro/NT/2003/2008. Protocols- TCP, IP, ICMP, SNAP, NetBios, ACS, IAS, SNR, IPX, SPX, PPOE, PPTP, IIS, PC Anywhere, Telnet, Frame Relay, RIP, IGRP, EIGRP, OSPF, ARP, RARP, WINS, FTP, SMTP, SNMP, POP, HTTP, PPP, NW Link. Topologies- Ethernet, Token Ring, Bus, Star, Ring, Mesh.

PROFESSIONAL EXPERIENCE

Intercontinental Exchange, Atlanta, GA June 2015 – Present

Sr. IT Engineer

Currently supporting back-office infrastructure with 6000 users

Currently supporting our Exchange 2010 environment and our 2015 Skype for Business application.

Recently implemented 2 Google Search Appliances for searching Sharepoint, 2012 DFS file system, and our Jive portal.

Assisting with recent acquisition moving AD users to our 2008 environment.

Working with Cisco’s Ironports, both physical appliances and virtual machines to monitor email traffic and limit spam.

Working with the Good application which supports our email flow on our mobile devices.

I am currently supporting Lyris, our mass email marketing system.

Currently supporting AD/DNS/DHCP on windows 2008.

Supporting SQL, Sharepoint, Terminal Services, Enterprise Vault, and DFS.

Supporting our Vmware Vsphere 6 environment by managing our virtual machine builds

Work with monitoring team with tuning alerts on vital applications with Spectrum.

Decommissioned old legacy exchange email environment and made sure accounts existed on current exchange environment.

Working on migrating Exchange users from acquired domain through Binary tree application to our domain.

Aldridge Connors, Atlanta, GA Oct 2014 – May 2015

Sr. Systems Administrator

●Support companies LAN infrastructure which includes 4 sites located across the Southeast supporting Exchange 2010, Terminal Server farm, Dell Equallogic SAN infrastructure, and active directory 2008.

●Currently managing our Solarwinds network monitoring system which consists of 80 servers, Cisco switches, and San infrastructure.

●Recently assisted team in moving our current infrastructure from a 2 rack setup into a cage at our data center location.

●Currently managing our vmware environment which consists of 16 ESXi 5.5 hosts.

●Managing windows updates through WSUS.

●Currently managing our Kapersky anti-virus solution for the company.

●Currently managing our RSA and 2-factor authentication systems for our clients.

●Managing 30 terminal servers

●Setup Veeam backup system

Hill Phoenix, Conyers, GA May 2011 – Oct 2014

Network Administrator/Systems Administrator

●Support companies LAN infrastructure which consists of 13 sites located across the country consisting of Cisco switches, ups battery backups, EMC SAN management, Riverbed technology, network printers, and 2008 active directory.

●Currently managing our Solarwinds network monitoring platform, consisting of the NPM, SAM, NCM, LEM, and Netflow.

●Currently managing our 3 exchange 2007 servers and 2000 mailboxes as well as our email archiving solution, Mimecast.

●Managed migration of 2000+ mailboxes to Office365.

●Installed EMC VNX5300 SAN solution into our current vmware virtual environment.

●I am currently supporting our current Citrix XenApp 4.5 environment which includes 10 Citrix servers.

●I am currently supporting our sql server environment, which includes sql server 2005 and sql server 2008.

●Currently managing our anti-virus platform of Symantec Endpoint Protection 12.2 version.

●Recently managed upgrading our company from active directory 2003 to 2008, which included configuring our DHCP and DNS on 15 domain controllers.

●I am currently managing our VMware vSphere 5.5 Environment, which includes 8 ESXi 5.5 servers at 4 locations and 100+ virtual servers.

●I am currently managing our Sharepoint server 2007 farm.

GoodCents, Atlanta, GA: Oct 2010 – May 2011

Network Engineer

●Support for companies network infrastructure which consists of 15 remote offices located across the country consisting of Cisco router and switch support, server administration, voip support, blackberry support, vpn support, printer support, and pc and laptop support.

●Currently managing our network monitoring solution, PRTG for our entire organization consisting of alarms and alerts for critical or down devices and applications consisting of cpu usage, memory utilization, disk space, and up/down stats.

●Currently managing our multi-purpose help desk system called KACE by Dell, which consists of a help desk solution, windows updates management, imaging and deployment center, and an inventory system for hardware and software.

●I assisted in setting up our backup exchange system called EMS by Dell, which is a failover system in case our exchange environment fails.

●Assisted in setting up a Vmware 4.1 environment consisting of 3 HP servers each serving as a VM Host in our new environment.

●Assisted in setting up our new SAN from Dell called Equallogic 4000.

Nordic Cold Storage, Atlanta, GA: January 2009 – Oct 2010

Senior Network Engineer

Support for companies network infrastructure which consists of 35 servers, HP Pro-curve switches, cisco routers, Cisco 2960 switches, Hitachi SAN, 13 remote locations, 400+ users, and 6 bundled T1’s in a 24x7 environment.

Migrated most of the companies physical servers to a new Vmware ESX 4.0 environment which consists of 3 HP ESX servers hosted at our colo facility.

Maintaining our virtual servers in the VMware environment through vSphere 4.0 client using clustering, fault tolerance, Vmotion, reconfigure options, alerts/alarms, cloning/templates and importing machines. Also set-up an ESXi test environment to evaluate current and future applications and servers.

Supported the installation and configuration of our Hitachi 4TB AMS2100 SAN, which is used in our new virtual environment. Also set-up our EMC backup device to use with our ESXi test environment for added storage and performance.

Performed an Exchange 2003 to Exchange 2007 upgrade for the companies email, which entailed moving all existing 2003 mailboxes to Exchange 2007 . This upgrade consisted of loading a 64 bit server with Server 2008, and also changing all applications which pointed to the old email server to the new one and also changing the send/receive connectors to point to the new exchange 2007 server.

Set-up the company ticketing system, support suite, to handle the processing of IT related issues and change control.

Set-up Orion, made by Solar Winds, to handle our Network and Application monitoring for the company. This application allows us to monitor switches, routers, servers, and applications and set-up alerts and reporting on wmi, syslog, performance monitors, and active and passive monitors on our network. Also working with Servers Alive, the Dude, Wireshark, and WhatsUp Gold for various network monitoring tools.

Assist in maintaining and monitoring our Barracuda Spam filter as well as our Cisco VPN 3000 concentrator setting up our users for vpn access.

Work with our Watchguard Firebox X core firewall making any changes as our network evolves. Also configured a duplicate Firebox for redundancy.

Set up backups with Symantec Backup Exec 12.5 and 2010, which includes our exchange server, warehouse applications, and accounting backups.

Helped in setting up log shipping for our tier 1 applications, such as Red Prairie and SE2 with Sql Server 2005 for disaster recovery.

Day to Day maintenance of our Citrix farm, which entails 6 servers and all of our users with Esprit thin clients. Also migrating to XenDesktop 4 for our remote citrix users.

Upgraded Microsoft Dynamics 9.0 to 10.0, and maintain all of our accounting applications, such as FRX, FAS, Business Portal and Greenshades on our SQL 2005 box for our accounting department.

Upgraded our Blackberry Enterprise Server to version 5 and also maintain the day to day operations for our blackberry users.

Daily support for our warehouse management systems, Red Prairie and Accellos SE2, which is Linux based.

Working with PHP, MYSQL, SYBASE, EDI, and SQL with various applications.

Set-up internal IT sharepoint site using Sharepoint Services 3.0, which is web site driven. Also working with an ITIL framework, and set-up an incident management system to report outages company wide.

Moved multiple asp.net web applications from a test environment into a production environment, and configured it allowing web access to our employees and customers both internally and externally.

●Heavily involved in maintaining our active directory environment which involves setting up new employees, distribution groups, deploying new group policies, and password resets. Set-up WSUS to perform weekly server and desktop windows updates.

Conarc Inc., Alpharetta, GA: May 2007 – Jan 2009

Software Engineer

Support new and existing customer base through Support Suite ticket system using phone, chat, and email.

Managed new customer installations through remote sessions via vpn, rdp, and web-ex connections working with customers IT staff.

Working with various technologies such as Windows 2000/2003/2008 Server, IIS 6.0, IE 6/7, ASP.NET 2.0/3.0/3.5, SQL Server 2000/2005/2008, Visual Fox Pro, PC Anywhere, VMWare, Go-to-Meeting, Microsoft Office, Sharepoint, Adobe, VPN, and Remote Desktop.

Knowledge of TCP/IP, DNS, Active Directory, SSL, DMZ, IIS 6.0 Application Pools, WinTAM, Microsoft Visual SourceSafe, Microsoft Visual Studio 2005/2008, firewalls, sql server queries, stored procedures, ODBC, DCOM, batch files, visual fox pro table entries, exchange server configuration, adobe acrobat, winzip, and Microsoft office products.

Troubleshooting knowledge of http, html, .net, c#, fox pro 7,8,9, IIS, Sql Server tables, web configurations, event viewer logs in windows server 2000/2003/2008, and debugging various errors.

Writing an automated testing program through Microsoft Visual Studio 2008 written in C# to test our current builds on our test server.

Moved a C# web application from a test server into a production server and configured.

Training customers on our software showing them how to use current processes.

Arel Communications, Atlanta, GA: February 2006 – May 2007

Software Engineer

Support and configuration for Arel’s integrated video, audio, and data web conferencing solution both stand-alone and integrated with Microsoft Live Meeting.

Worked with Windows 2000/ 2003 server, IIS 6.0, IE 6.0/7.0, ASP.NET 1/2/3,Norton Ghost, SQL Server 2000/2005/2005 Express editions.

Coordinated installation and integration of Arel AnyWare solution into customer’s network environment by on-site and remote installation on customer’s 2000/2003 Microsoft server.

Extensive knowledge needed for DNS Servers, multiple firewalls, TCP/UDP ports, proxy servers, TCP/IP, IIS 6.0 web server, ASP.NET 2.0.50727, Sql server database configuration and manipulation, Sql queries, jobs, restores, backups, upgrades, and web integration.

Troubleshooting knowledge of IIS/.Net/ sqlserver database/Microsoft server, webcams, Cisco Pixs, checkpoint and sonicwall firewalls, VPN and RDP, software integration and understanding log files and error messages to find solutions to issues.

Working with Sun Solaris, LDAP, Red Hat Enterprise 3/4, Oracle 9.2/10g, VMware, and Jabber database to configure new video/audio/data solution over the net.

Set-up wired/wireless network for focus groups showing Oovoo web conference application.

Verizon Wireless, Alpharetta, Georgia: September 2005 – February 2006

End User Support Analyst

Set-up microsoft office products, imaged pc’s with ghost, and configured workstations with Windows 2000/XP and added users to Verizon’s network.

Added local and network printers, scanners, copiers, blackberrys, and fax machines to existing network.

Set-up HP server racks, crimpted cat-5 cable, and mounted HP DL380’s and DL580’s in main computer room.

Worked with Active Directory, Exchange 2000, Citrix MetaFrame, Vision billing system, and numerous applications in an enterprise environment.

Lan System Services, Norcross, Georgia: June 2005 – September 2005

Field Network Engineer

Set-up, configured, and integrated Windows 2000/2003 Server and Small Business Server for small to medium sized businesses.

Set-up, configured, and troubleshoot exchange server and active directory in a windows environment.

Installed Symantec anti-virus corporate edition 9.0/10.0 as a new customer and as an upgrade version. Set-up automatic update from a client/server environment.

Set-up and integrated Watchguard Firebox Edge X, as it relates to ISP and server configuration into new and existing networks to protect internal clients.

Set-up and configured Veritas Back-up Exec with HPTravan internal storage tape backup and Iomega USB 2.0 tape back-up, and made sure timely backups were performed.

Set-up and installed network printers, hardware upgrades, software upgrades, transferred data to and from network and from pc to pc.

Worked with customer sites remotely through Remote Desktop and Webex software. Analyzed server, veritas backup, and exchange logs to determine issues and solve problems.

Set-up terminal services and VPN for customer access from home.

GETRONICS/ HOME DEPOT, Atlanta, Georgia; Sept 2004 – June 2005

SWAP Support Team – Network Engineer

Provide remote technical support for the Store Wireless Architecture Project deployment for the LAN/WAN environment for the 1800+ Home Depot stores.

Technical expertise, training, and troubleshooting for on-site technicians during installation of wiring cat5 and fiber patch cables, Cisco switch and fiber concentrators, console consolidators, WLSE’s, provisioning server, EMU’s, and Cisco wireless AP cut-over.

Thorough knowledge of networking hardware including Cisco 3550 gig switches, Cisco 3550 fiber concentrators, Cisco 2611 routers, Cisco 3800 routers, Cisco fiber concentrators, Cisco wireless A/B/G AP’s, UPS, Digi console consolidators, out-of-band management, fiber patch panels, HP-UX A/D servers, AIX IBM servers, Hitachi Raids, Cisco WLSE’s, Symbol AP’s, HP Provisioning Server, Muck panel, network printers, scanners, Ramline and Intermec mobile carts, and extensive troubleshooting and integtration of Avaya PBX systems.

Extensive knowledge of Home Depot’s software applications including Vantive, their help desk trouble ticket processing system, Netcool, a tool specifically designed to monitor, update, and troubleshoot the network environment in the stores, and On Command, which monitors the set-up of the HP-UX provisioning servers and the POS system.

Set-up, configuration, verification, and troubleshooting knowledge of pinging devices remotely, telneting into devices such as the Digi console consolidator and 24-port switches to verify port standards, inventory management, adding MAC addresses into the bootp, verifying HP-Unix configuration files for the provisioning server, WLSE, Cisco IOS commands, and Cisco AP’s.

Assisting and documenting the wireless design, which includes location and specifications on CAD drawings of the site surveys detailing internal and external AP’s to maximize wireless coverage throughout the store.

Training on-site technicians about network configurations, which included verification of port standards, basic troubleshooting of connectivity by testing fiber, copper, and cat 5 cables, baluns, link lights, re-seating connections, terminating cables, and bootp/dhcp operations.

GLOBAL SERVICE SOLUTIONS, Roswell, Georgia; July 2003 – Sept 2004

Field Service Technician

Set-up, troubleshoot, and repair wired and wireless networks for home and small offices.

Extensive troubleshooting of software issues including viruses, spam, pop-ups, registry files, spyware, debugging, drivers, operating system files, and system functionality.

Extensive troubleshooting of hardwire issues including motherboards, RAM, PCI adapters, video cards, hard drives, cd/dvd drives, flash drives, zip drives, usb, and floppy drives.

Repair and maintenance on desktops, laptops, PDA’s, and printers including Sony, Dell, HP, Apple, Compaq, Toshiba, Gateway, Epson, Lexmark, and Samsung products.

Unmatched service with a CompUSA purchase of a computer system which includes, set-up of system, configuration with existing network, internet access, training of XP operating system, PDA’s, printers, projectors, TV’s, audio and video equipment, digital cameras, scanners, copiers, fax set-up, loading of customer software including any anti-virus, ghost, firewall, VPN, Go-Back, Outlook, and MS office software, and the transfer of any existing data.

Setting up and configuring wired and wireless routers for dsl, cable, and satellite internet service including WEP encryption, file and print sharing, security measures, firewall, bridging, SSID, channel ID, and password management.

Thorough knowledge of networking equipment including routers, modems, hubs, switches, print servers, access points, range extenders, network adapters, antennas, and cables.

Extensive knowledge of networking configurations between Windows 95, 98, NT, 2000, XP, and Mac computers and how they interact with various networking hardware and software.

Help Desk support for Spelman College with duties including computer installation, Lotus Notes install, setting up account ID’s in Active Directory, adding users to local machines, downloading applications from Application Server, such as McAfee E Policy Orchestrator, anti-virus, stinger, banner requests, monitoring firewall and intrusion detection, and setting up network printers.

VERIZON WIRELESS, Alpharetta, Georgia; August 1994-2001

Help Desk Analyst- Tables Management

Project Manager for the implementation, training, and rollout to call centers.

Set-up new tables with marketing, pricing, and financial data for billing process.

EDUCATION

University of Cincinnati, Cincinnati, OH College of Business Administration: BS, Marketing.

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