Engineer Customer Service

DAVID H. ROPER **** West Spring Valley Road, Apt. 215, Richardson, TX 75080

972-***-**** (home) 248-***-**** (cell)

*************@*******.*** (email)

http://www.linkedin.com/profile?viewProfile=&key=2218337 (linkedin.com profile)

SUMMARY OF QUALIFICATIONS

Expertise includes Cisco routing and switching (5 years), Voice over IP (2 years), Networking (6 years), and

Linux/Unix (4 years).

1 EDUCATION

• Cisco Certified Network Associate (CCNA) (security track) – (Cisco ID: CSCO11188319)

• Cisco Certified Network Professional (CCNP) (routing and switching track) – (Cisco ID: CSCO11188319)

• Cisco Certified Network Associate (CCNA) (routing and switching track) – (Cisco ID: CSCO11188319)

• Bachelor of Science, Electrical Engineering Technology, University of Toledo, Toledo, OH.

2 WORK EXPERIENCE

Solutions Architect (remote position), AT&T, Bedminster, NJ, October 2013 – November 2013

• Received training for a cell phone project involving transitioning their business customers from 3G to 4G.

• We were to have regular customer phone meetings, assess their technical needs, assess Cisco router

configuration files for accuracy, and move APN names between databases during maintenance windows.

• I was one of 25 network engineers working remotely. The team was furloughed due to lack of funding.

This job was stated as possibly resuming in January 2014, but no confirmed date had been reached.

Environment: Dell business laptops

IP Design Engineer (contract position), Ericsson, Plano, TX, September 2012 – July 2013

• Generated and verified cell site router scripts and spreadsheets for a Sprint cell phone project.

• Cell site IP address and VLAN information is contained in a database and Excel is used for checking

generated spreadsheets.

Cell site router hardware includes the Ericsson SP210 and SP310.

Cell site network configurations include ring and hub/spoke.

Cell site WAN connections include microwave, fiber optic, and bonded T1 lines.

Observation of how WAN network connections for cell sites are sized for present and future capacity and

whether to use SONET/TDM or fiber optic technologies.

Environment: Excel, Dell business laptops and docking stations

Network Engineer (contract position), RJN Group, Tampa, FL, June 2012 – June 2012

• Installed and configured a 2800 series Cisco multilayer switch for a mechanical engineering firm.

• Programmed the multilayer switch using a provided base configuration template.

• Troubleshot the multilayer switch on a second visit to get their remote telemetry units working.

Environment: Cisco multilayer switches (2800 series model)

David H. Roper *************@*******.*** (email) 972-***-**** (home)

Network Engineer (part time contract position), Tomkins Building Products, Richardson, TX, March 2012 –

April 2012

• Tier 2 technical support of Tomkins’ networking infrastructure.

• Performed an inventory of their remote site’s Cisco routers and switches. Information collected included

configuration files, interface types, and connections to other Cisco equipment.

• Utilized Ciscoworks 4.1 to store a list of router and switch IP addresses for the purposes of a mass password

change.

Configured and shipped Cisco routers to their remote sites.

Environment: Cisco routers (3900, 2900, 2800 series models), Cisco switches (3700, 3500, and 2900 series

models)

Network Engineer, Associated Wholesale Grocers, January 2012 – January 2012 (1 month), Fort Worth, TX

• Installed and configured a 3500 series Cisco multilayer switch for a grocer at their guard house.

• Programmed the multilayer switch to get their VLANs and guard house network working using a

provided base configuration template.

Environment: Cisco multilayer switches (3500 series model)

Network Engineer (contract position), Management Data Systems International, Tampa, FL, May 2011 –

August 2011

• Remote networking, troubleshooting, and upgrading support of one third of AT&T’s 1700 retail cell

phone stores for new routers, switches, and wireless access points.

• Remote support of their field technicians that visit each store an hour before they open for the day.

• Each store has multiple T1 lines bonded together and multiple connections to AT&T’s BGP cloud using

virtual routing and forwarding (VRF).

• Each router or switch gets upgraded to a newer Cisco or Brocade Foundry model.

• Test and turn up of a T1 line dedicated to a Belair wireless access point.

Communicated with MDSI and AT&T via email using provided computers.

Received initial training at AT&T’s data center in Allen, TX.

Environment: Cisco routers (2911, 2821, and 2811 models), Cisco switches (3560 and 2950 models), Belair

wireless access points.

Network Operations Technician III (contract position), T-Mobile USA, Inc., Frisco, TX, November 2009 –

November 2010

• Troubleshooting and upgrading of T-Mobile's cell phone network from 2G to HSPA+ 4G.

• T-Mobile's network covers four US regions and major cities within each region.

• The portion of their cell phone network design that we're responsible for consists of equipment

including pairs of Cisco 7609 multilayer switches, network interface devices (NID) manufactured by Accedian

Networks, and NID provisioning software from JDS Uniphase (JDSU).

• Each individual cell site has its own VLAN and all sites are managed from one VLAN.

David H. Roper *************@*******.*** (email) 972-***-**** (home)

• Cisco's Hot Standby Router Protocol (HSRP version 2) is used to hold the Active state for the odd

numbered VLANs on the first Cisco 7609 multilayer switch and hold the Active state for the even numbered

VLANs on the second Cisco 7609 multilayer switch.

This was a contract job through Teksystems. The contract was completed on November 28, 2010 due to budget

cutbacks at T-Mobile.

Each pair of Cisco 7609 multilayer switches is in the access layer of a traditional core / distribution / access layer

network design.

T-Mobile's network clouds include the individual cell sites and regional mobile switching centers where switch

technicians work.

In between these two T-Mobile clouds is a cloud that belongs to a Metro Ethernet vendor (AT&T, Verizon, Time

Warner, etc.) that serves that particular major US city.

Each Metro Ethernet vendor has equipment (routers or cell site switches) that allows our two clouds to connect

with their cloud.

Observation of how WAN network connections for cell sites are sized for present and future capacity and

whether to use SONET/TDM or fiber optic technologies.

Each JDSU NID has to be provisioned and troubleshot by us if the provisioning didn’t work.

We make and/or receive troubleshooting calls to and/or from field technicians, switch technicians, Metro

Ethernet vendors, and project managers.

The environment in which we work is a 24/7 network operation call center (NOC) that consists of Windows XP

and Sun Solaris workstations, three position adjustable LCD monitors, an Avaya phone, and a headset.

Projection monitors at the front of the NOC display phone queues, weather that affects cell sites, and news.

The Avaya phones allow us to log into or out of the phone queue, change our presence status (Available, Project,

Break, etc), transfer calls, mute calls, hold calls, and put multiple people into a conference.

All cell site issues are documented in a custom trouble ticketing system.

Environment: Cisco multilayer switches (7609 model), Accedian Networks NIDs, JDSU NID provisioning

software, Windows XP workstations, Avaya phones.

Digital Field Operations Engineer (contract position), Cisco Systems, Inc., Lawrenceville, GA, May 2008 – July

2009

• Configuration of Cisco 4948 multilayer switch for network connectivity of cable television hardware.

Programming included the OSPF routing protocol to interface with non-Cisco customer owned equipment,

VLANs, static/default routes, and IP address assignment.

• Upgraded or installed Sun Solaris computers, and video distribution equipment in customer’s cable

television head end buildings.

• Received six weeks of training at Cisco’s Lawrenceville, GA campus in cable television, radio

frequency, and routing and switching topics.

• Traveled as needed alone or with a lead engineer to US cities. Navigation to customer locations

performed using a Garmin GPS.

This was a contract job through CorTech, an Atlanta, GA contract agency. Assignment was to the Scientific

Atlanta / SciCare Services division of Cisco. The contract was completed on July 17, 2009 due to staff layoffs at

Cisco.

Participation in conference calls with the customer and Cisco to assess the customer’s needs and requirements

before traveling to customer’s site.

Assigned a Dell laptop to document the work performed, log into customer’s routers, and to contact Cisco

through a VPN. Project notes, issues, and status reports were logged in a trouble ticketing system.

Environment: Cisco multilayer switches (4948 model), Sun Solaris servers, QAM, QPSK, set top boxes,

Unix, TCP/IP, Ethernet, Garmin GPS, Microsoft Office

VoIP Engineer (contract position), Verizon Business, Richardson, TX, May 2007 – December 2007

David H. Roper *************@*******.*** (email) 972-***-**** (home)

• Testing of phones (IP phones, software phones) for compatibility with Verizon’s Advantage business

telephony network. Test steps were pulled from a database.

• Documenting of test conditions, expectations, and results in HP Quality Center or Excel.

• Configuration and programming of Cisco 3825 routers, Catalyst 3560 POE switches, and Cisco IOS 12

to meet test conditions.

This was a contract job through Teksystems. The contract was completed on December 31, 2007 due to layoffs

at Verizon affecting 10% of the staff.

Troubleshooting and packet captures of TCP/IP were performed by Wireshark.

Building, maintenance, and administration of two Linux servers used in the lab environment to distribute phone

configuration files via Apache and SSL, provide a local Bind DNS service for testing DNS failover, and log

debug reports from phones using Syslog.

Interfacing with visiting vendor representatives to obtain technical information needed to complete telephony

testing.

Environment: Cisco, Polycom, Aastra, Uniden, Mediatrix, Redhat (Centos) Linux, TCP/IP, VoIP,

Ethernet, fiber optic, Power Over Ethernet switches, Microsoft Office

David H. Roper *************@*******.*** (email) 972-***-**** (home)

VoIP Reviewer (contract position), VoIP Supply, Buffalo, NY, September 2006 – January 2007

• Reviewing of the Polycom IP430 desktop IP phone and a Linksys WIP300 wireless IP phone. Review

topics included how well they integrated with Asterisk, features, documentation, and general condition.

• The resulting reviews got posted on VoIP Supply's blog web site in January 2007.

This was an as needed position.

Environment: Asterisk, Redhat (Centos) Linux, Polycom, Linksys, TCP/IP, VoIP, Ethernet, Dlink switch,

workstations, FTP server

VoIP Programmer (contract position), The Cipher Group, Frankfort, IL, August 2006 - September 2006

• Installation and programming of the Asterisk PBX, Centos Linux, wireless access points, and Polycom

IP phones.

This was an as needed consulting position that involved two trips to a Chicago area school system.

Environment: Asterisk, Redhat (Centos) Linux, Polycom, TCP/IP, VoIP, Ethernet, Power Over Ethernet

switches, FTP server, 802.11g wireless access points

VoIP Programmer (contract position), Express Line, Osceola, IN, December 2005 – March 2006

• Installation and programming of the Asterisk PBX, MySQL, and Centos Linux to replace an existing

Windows based telephony system that serves customers in Osceola and Lakeville, IN.

• Cisco 3600 series routers were configured and programmed with access control lists to allow only certain IP

addresses to reach the Asterisk servers.

• Work performance used by supervisors to apply for a patent pending for the combination of the customer’s

dialing device and Asterisk as a means of enabling the customer to receive cheaper rates on long distance phone

calls.

This was an as needed consulting position.

The PBX telephony system allows customers to make local or long distance phone calls at a cost savings versus

the costs offered by a traditional phone company.

The hardware used for this project includes Digium T1 and 24 port analog cards and servers with dual or single

processors and Raid.

Billing results are calculated and collected into a master MySQL database.

Environment: Asterisk, Redhat (Centos) Linux, TCP/IP, VoIP, Ethernet, Digium T1 and analog cards, T1

lines (data and PRI voice), OpenSSH, servers, Cisco 3600 series routers, Access Control Lists (ACL), default

routes, shell scripting, MySQL database

Senior Software Programmer (contract position), Pro-Comm, Destin, FL, April 2005 - August 2005

• Remote programming of Asterisk and Switchvox PBX for business VoIP customers (850 area code)

• Collaborated with Junction Networks and TelIAX for connecting PBX computers to their VoIP services.

TelIAX initially chosen by Apex for use of their VoIP services. Due to customer service and connection

unreliability, TelIAX was dropped and Junction Networks was used instead.

• Mentored remote implementation team on general VoIP topics, programming IP phones, networking, and

Linux issues.

The job ended up being short term due to not enough VoIP customers to sustain my hours.

Arranged phone numbers to be moved from one phone carrier to another as needed using number portability

rules.

Environment: Asterisk, Redhat (Centos) Linux, Polycom, TCP/IP, VoIP, Ethernet

David H. Roper *************@*******.*** (email) 972-***-**** (home)

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