Dave Warner

Raleigh, NC *****

ad3ep6@r.postjobfree.com 919-***-****

“Public Trust Security Clearance”

I strive to continuously improve myself. Every day is a new learning opportunity.

Education & Professional Development

Computer Technology / Science Certification

Control Data Institute – Minneapolis, MN

Over 1000 Hours of Classroom and Hands On Training

Provided by Control Data Mainframe Developers

CCNA Certified - New Horizon Training

Microsoft Certified Systems Engineer Windows Server 2003

Microsoft Certified Systems Administrator Windows Server 2003

Microsoft Certified Technology Specialist Exchange Server 2007

Microsoft Certified Technology Specialist Office Communications Server Certification

Microsoft Certified Professional Certification

Qualifications Summary

Professional technical problem solving engineer. Currently performing layer 1-3 support of the USPS Cisco routers, both wireless and wired broadband. traveled for 2 years upgrading NDC offices Admin and MPI switches. I've performd tier II support of WLCs, WAPs, WGBs and various wireless client scanning devices. I have over 17 years of VoIP design, integration and remote support experience from proof of concept to present day technology. I worked with all hardware switch server platform and software development teams for LEC and enterprise VoIP systems. These systems utilize Linux, UNIX and Windows based servers for CallP, IVR, Contact Center CallP / Mgmt Systems, SQL DB’s for CDR’s, MACD’s, Firewalls and Cisco Switch Stacks.

Experience Summary

Tools: Cisco Prime Infrastructure and WLC GUI, NetIQ, Service Now, Remedy, CAPRS, Citrix, Remote Desk Top, Wireshark, Ethereal, Debug

Address Services/Security: DNS, DHCP, Radius, LDAP, SOAP, Apache, Tomcat, VPN, .XML, .CSV, HTTPS, FTP, SQL

Protocols/Codecs: OSI, OSPF, TCP/IP, RIP, RIPv2, IGRP, EIGRP, IS-IS, BGP.MPLS, SIP, H.248, MGCP, T.38, ISUP, SS7, G711, G729, G722, ATM, Frame Relay, RTP, RTSP, RAS, MIME, SDP, UDP, SNMP, SMTP

Operating Systems / Platforms: Sun Solaris UNIX, Commercial Grade Linux, Windows Server 2003, Nortel SOS

Professional Experience

USPS Technical Support Engineer - Raleigh, NC August 2017 - Present

Remote Access Services Network Engineer - (9/2021 - Present)

My prime funtion has been configuration and support of Cisco routers designed to securely connect to the usps.gov network from an employees home without vpn. The group supports a multitude of office types that sell postage, distribute/receive mail, parcels and packages while utilizing cellular broadband, MPLS BB, DSL to coordinate delivery statistics. The group is ready to support loss of data due to disasters. Also during the postal holiday peak season mail, parcel and package delivery.

Network Engineer - (9/2019 - 8/2021)

The purpose of this team was to upgrade NDCs, the largest postal Distribution Centers in the Network. This entailed performing site surveys to obtain current site conditions. Plan and purchase switching gear, cabling, (fiber and ethernet). coordinate with contract companies to upgrade site fiber and cable wiring while I configured the new switching gear for the specific site.Travel to site and over 12 days, perform the Cisco switching gear upgrade and ensure everything is operational.

Telecom Wireless Support Engineer - (8/2017 - 8/2019)

As a Wireless Tier 2 Support Engineer for USPS my responsibility is to provide troubleshooting for performance, data integrity, security, upgrades, inventory and connectivity related issues affecting the telecommunications infrastructure. Assisted in supporting the overall wireless telecommunications infrastructure and architecture. Monitored and managed the controllers and wireless devices. Created Remedy / Service Now tickets for wireless devices as alerts are generated from the Wireless Control System (WCS) / Cisco Prime Infrastructure Operations Center, and resolve issues discovered through the monitor / management process. Managed wireless support calls and tickets. Provided controller, AP maintenance, and monitor turnover of new sites as they are deployed.

Cisco Monitoring - Researched alarms and alerts that the Cisco Prime Infrastructure generates to relieve database activity and increase server performance. Also researched autonomous APs and location sensors located at YMS (Yard Management System) sites. Continuously scoured APs for proper HA (High Availability), VLAN mappings, duplicate hostnames, proper group assignments, missing radio modules, and other anomalies. Also continued to verify accuracy of network data to include configurations on wireless devices, routers, and switches.

Wireless Troubleshooting - Identified WAP (Wireless Access Point) and WGB (Work Group Bridge) related issues, created ServiceNow tickets, provided resolution support or implemented escalation procedures to the appropriate group for resolution. Provided wireless support to plants that utilize SV (Surface Visibility) and/or YMS (Yard Maintenance System) by researching related wireless issues, relating results to SV team, resolving any problems via remote troubleshooting, and escalating to appropriate teams when a larger network failure appears to be impeding successful communication.

Directly supported site personnel with troubleshooting and resolving wireless infrastructure issues related to the DUIT (Delivery Unit Infrastructure Technology), DSS (Delivery Schemeless Sortation), PASS (Passive Adaptive Scanning System), and MPOS (Mobile Point of Sale) projects. Performed daily ticket review to ensure that issues are resolved in the most effective and timely manner possible and that SLA were adhered to. Used Splunk captures, indexes, and correlations in real-time data, via a searchable repository, to help resolve issues.

Switches - Investigated Cisco 800 series and 2960 Catalyst switch issues, configurations, and logs in order to take necessary actions for resolution.

Scanners - Reviewed existing documentation and research in preparation for wireless Surface Visibility (SV) upgrades planned at processing and distribution facilities. Worked extensively with SV Tier 2, along with numerous plant sites and users, to troubleshoot wireless connectivity issues with the new CN-51 scanners and SV Mobile. Collected scanner / client association history, and troubleshooting steps, to send to Honeywell for further investigation to the CN-51 scanner’s issues.

Recently promoted to Assistant Team Lead of 17 support staff in a fast paced 24 X 7 X 365 work environment.

TACACS - Monitored TACACS servers and ensured it was added to Cisco devices as part of Network Security.

RADIUS - Monitored Radius servers and ensured authentication for devices connected to the wireless network.

IPAM - Submitted IPAM requests for hostnames, DHCP RESV IP address requests, and Option 43 requests in preparation of new devices to be installed. Updated information for network devices. Ensured updates occurred and were correct NCM (Network Compliance Manager) and WLI (Wireless LAN Infrastructure).

WLI - Continuously reviewed WLI database information for accuracy and input data where needed. Added/updated new and existing devices to the WLI and NCM. Worked with MNS (Managed Network Services) to enhance usage of the WLI database. Updated information based on CDP (Cisco Discovery Protocol) Neighbor scan results.

WIKI - Utilized wiki for situation-specific standard operating procedures and other process documents used by Telecom Services.

Professional Improvement August 2016 – July 2017

CompTIA Security+ Certification course study - CCNA Study Review

General Dynamics Internet Technology – RTP, NC November 2012 – July 2016

Senior Telecom Engineer (11/2012 - 6/2016)

As a VNOC Eng. for the SSA TSRP, (Social Security Administration Telephone Service Replacement Project), my primary responsibility is ensuring network infrastructure stability. I analyze all alarms from a network that stretches from the Caribbean across the USA extending through the Pacific Rim. The network includes over 1600 CS1K Branch Offices plus 30 Large Sites and 4 Service Distribution Point sites. I act on the alarms remotely, correcting the issue with manual intervention if possible. If not I gather data to assist when on site manual intervention is required. Other responsibilities include remotely upgrading Linux or Microsoft servers, assisting Tier I, support MACD (Moves, Adds, Changes, and Deletes), resolve issues immediately, programming VoIP phones, engineering and working special projects as required.

Global Knowledge – Research Triangle Park, NC April 2012 – October 2012

Network & Systems Developer (4/2012 - 10/2012)

As the Network & Systems Developer for all Avaya equipment in the Global Knowledge World Wide Remote Labs, my primary responsibilities are developing systems for new classes. After the system is tested and proven to function as needed I then virtualize the system via ESXiv5 and VMware. I also support the Instructors in the field when a problem arises. The Avaya equipment ranges from Call Server 1000s on 5.5 to 7.5 with the Unified Communication Manager, Session, Service and the entire suite of new system management services, plus the Avaya Aura Contact Center at 6.2, Call Pilot as both IVR and voice mail, Avaya Aura system. Performed configuration and maintenance activity on a Cisco Unified Call Manager.

Insight Global – Research Triangle Park, NC March 2009 - March 2012

Communications Server 1000 Consultant (3/2009 - 3/2012)

CS1K Consultant to Avaya Government Solutions for the Social Security Administration Telephone Service Replacement Project, (SSA TSRP), the largest VoIP network in the world. Our team installed and configured the SDP, (Service Destination Point) which consists of Avaya CS1K, Cisco switches, MPS 500 / 1000 IVR, Audiocodes M3K SIP gateways. Provided tier III support for the SDP and remote implementation support of Avaya CS1Ks in 300+ SSA branch offices with nearly 16,000 IP Phones. The VoIP solution is managed via numerous MS Windows 2008 and Linux based servers. Maintain, upgrade and provide off-hour rotational support.

TSRP Award Certificate: Associate Commissioner’s Citation from the Social Security Administration Office of Telecommunications and Systems Operations. For outstanding work and effort assisting with a successful project implementation. One of two awarded in 2012

Nortel Networks – Research Triangle Park, NC January 1986 - November 2008

Integration / Support Engineer (3/2007 - 11/2008)

Responsibilities were Integration and Support for Microsoft Office Communications Server, Exchange Server 2007 and MS Windows based Nortel SR4134 Secure Router. I integrated the Microsoft servers with all Nortel's Enterprise and Carrier divisions CS1000E, CS 2100 and CS2K softswitches. I also supported the Linux and Windows based servers for the CS1000. On the CS2100 and CS2K I supported and upgraded the carrier grade Linux and UNIX based servers the various system applications required.

Global Network Product Support (GNPS) (10/2004 - 2/2007)

Audiocodes gateway used to deliver conference calling, call processing progression tones and Legal Intercept, (CALEA), in the CS 2100 and CS2K softswitches. Also Line Gateway Controller GNPS.

OAM&P applications are on a UNIX based Sun server with Nortel's SPFS platform software to configure, monitor and maintain the VoIP Softswitch. I supported the Sun Solaris UNIX based servers that monitor the various elements of the CS 2100 and CS2K Softswitches. Debugging system security issues was required.

Base Platform/Spectrum Peripheral Module Call Processing (GNPS) (6/2001 - 9/2004)

Hardware Maintenance Software Support for the DMS and SL100 family switching systems.

Centrex VoIP Design Support (2/2000 - 5/2001)

Software and hardware design support during the proof of concept period for VoIP. The system was successful and delivered to several dozen customers for evaluation.

Core TEAM CallP Design / Support Engineer (7/1996 - 1/2000)

Software design and support for Core TEAM and Feature call processing team responsible to resolve Verification Office issues for DMS / SL100 family switching systems. Feature CallP included 3WC, CFW, Caller ID, etc., which required use of Calltrak, XPMIST, PMDebug, C7TU tools depending on which XPM, (LGC, LTC, DTC, SS7 or PRI XPMs) LIM or LIU7. I have 147 updates in the DMS and DMSPL software library.

Nortel Networks - Management Years (4/1990 - 6/1996)

Sprint Customer Project Manager (7/1995 - 6/1996)

Account Management focused on ensuring resolution of Sprint’s high profile technical issues.

Platform Product Staff Manager (1/1995 - 6/1995)

Drove high risk customer projects through design groups to rapid completion and deployment.

NT40/BRISC Network Group Manager (8/1991 - 12/1994)

Managed expert support engineers and drove design and NPI teams through product verification for DMS and SL100 family switching systems.

Emergency Tech Support Manager (4/1990 - 7/1991)

Managed expert engineers recovering DMS / SL100 family switching systems.

Nortel Networks - Custom Calling / SS7 Engineer (1/1986 - 4/1990)

Selected to work within pilot organization supporting feature call processing delivery to the public and the SS7 group to assist the overall case reduction effort by 20%

Digital Switch Corporation - Dallas, TX September 1983 - December 1985

Customer Technical Support Engineer

As a Customer Technical Support Engineer, I was assigned to support Sprint’s Class 3 long distance office equipped with a DSC DEX400 totally digital switch. The site was dedicated to all telephone traffic on the west coast, Seattle, Portland, N. California, Los Angeles through to Oklahoma. This was accomplished via 2400 channel radio shots to the main route connector hubs, San Fransico through Portland/Seattle, Reno, Salt Lake, Los Angeles and back, plus Los Angeles and eastward

GTE Automatic Electric April 1977 - August 1983

Field Test Engineer

As a Field Test Engineer my responsibility was to ensure the GTE #2EAX common control analog telephone switch was completely void any factory defect. This required nearly a year of around the clock testing. I was promoted to support

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