Engineer Manager
Resume:
RESUME OF: Keith P. Rivers
Austell, Ga. 30106
Email:********@*********.***
Mobile: 404-***-****
Skype Id: **********@*******.***
Profile
●20+ Years of Voice Communications & Leadership Expertise
●Driven, Goal Oriented Senior Engineer for National Telecom providers.
●Extensive experience in network architecture, implementation and support of large, multi-vendor wide area networks.
●Management experience includes positions held in product service/carrier management.
Knowledge of LTE RAN, CDMA, UMTS and GSM access network
●5 year military career in United States Army,The Pentagon
Network Training and Certifications
LTE Wireless Training Project Management
Radio Frequency Training CDMA NSS Fundamentals
UMG8900 Routine O&M BSC 6680 RAN / BTS 3900 NodeB O&M
Ericsson UMTS Cisco Smart Integrated Access Device (SIAD)
M2000 Network Management HLR9820 O&M
ALU 7670 MSN Tellabs 8860
SOFTX3000 O&M (MSC) OSS Training
TL9000 Business Methodologies Microsoft Office (2007)
UMTS Signaling/Mobility ATM Architecture, Transmission and Core Concepts
Six Sigma AT&T Quality Management Services
PMP(accredited hours) Network Optimization
EPC (Evolved Packet Core) IMS (IP Multimedia Subsystem)
Technical Applications/Platforms
Productivity: MS Office Suite 2010, Word, Excel, PowerPoint, Visio, Project, SharePoint, Clear Quest, Remedy, Citrix Meta Frame Client, MS Project, TIRKS, Windows Clarify Client 8.0, Granite Client, CASPR, Rosetta
SAS (Service Access Server), Empirix and Netscout
Databases: Oracle, MS SQL, Sharepoint
OS: Windows Server, Linux (KDE in RedHat), Solaris for UNIX, Go Global for Unix, HP-UX, AIX
Language background: SQL, BASIC, Java, Semantic/HTML
Media Server: Microsoft Media, MS Exchange, SQL, LSAN
Additional Applications: Netcool, Webtop, Procomm Plus, Metrowatch, CVS, Lotus Notes, Secure ID, Novell NetWare, Winfoil, Telnet, CTS, Net Analyst, Alcatel 5620 (SAM), Alcatel 1353 CLI Manager
Education
Gwinnett Technical College 2014
PM and Certified Associate in Project Management
Certificate of Completion
Strayer University1991
Alexandria, VA, US
Computer Information Technology
Professional Experience
Sprint(GTA) Atlanta, Ga. 09/2018 – Present
CORE SME
Performing functional, KPI and feature testing for VoLTE.
IP tracing in a complex network & multi-protocol analysis. ( Net Scout/IMS & EPC)
Ensuring VOLTE & LTE call flows compliant with 3GPP specifications.
Strong knowledge in analyzing the PCRF equipment.
Analyzing the Gx interface between the PCRF and PCEF.
Analyzing the SY,SP, and RX interfaces between different nodes.
Ensuring that the Policies and Charging functions are being enforced.
Analyzing the diameter messages between the SPR and PCRF for subscriber policy rules.
Documenting clearly & accurately and escalating the discrepancies, anomalies or issues with the test case.
Testing & analyzing telephony voice services such as call waiting, call barring, 3-way calling, etc.
Testing & analyzing proper operation with landline (PSTN) & (Mobile networks) PLMN.
Testing & analyzing the voice quality of the voice services such as CDMA, VOLTE, etc.
Testing & analyzing proper operation with various 3G and 2.5G networks
Performing functional, KPI and feature testing for VoLTE.
Strong working experience on LTE Core network architecture, call flows, interfaces.
IP tracing in a complex network & multi-protocol analysis.
Experience with VoLTE and IMS functional elements and technologies is desired.
Troubleshooting experience and familiar with analyzing traces and logs.
Familiar with the following protocol analyzing tools (Wireshark, XCAL, QXDM).
Screened Images/Corrections Boston, Ma 07/2018 – 09/2018
Principal EPC/IMS Engineer
Evolved Packet Core Principle Engineer with IMS/VoLTE experience customizing the existing EPC core.
• Develop, deploy, and maintain a customized evolved packet core for various radio access technologies
• Work directly with Vendors to assist in the EPC development and deployment.
Proficiency in fundamental LTE, 3GPP IMS call flows, the SIP protocol, QXDM, Wireshark, and similar logging tools, with ability to read logs and troubleshoot VoWiFi and VoLTE/IMS registration, attach and session establishment and complete call flows.
Knowledge in 3GPP/3GPP2 legacy and IMS Text messaging services
• Extensive EPC Experience: MME & SGSN, GGSN/PGW/SGW/PCEF, PCRF, HSS/HLR, MSC, BSC, HNBGW, DNS,
• Strong knowledge in analyzing the PCRF equipment.
• Analyzing the Gx interface between the PCRF and PCEF.
Analyzing the SY,SP, and RX interfaces between different nodes.
• Ensuring that the Policies and Charging functions are being enforced.
• Analyzing the diameter messages between the SPR and PCRF for subscriber policy rules.
• VoLTE/IMS Core Experience: I/P/S-CSCF, HSS, and DRA Mapping,
• Experience in SIP, RTP, GTP, DIAMETER protocols
• Experience with S1ap, S5, S8, S10, S11, X2, and lu-cs/lu-ps interfaces
• Knowledge in small cell networks
• Wireshark or TCP dump packet trace applications
• Knowledge of the following wireless protocols: CDMA, GSM, WCDMA, LTE, Wi-Fi, Roaming
Sprint Headquarters Overland Park, Ks 03/2018 – 07/2018
VoLTE Validation Engineer (Lab)
Create and manage Sprint device specifications for VoLTE, IMS along with related IP Services(VoWiFi).
Proficiency in fundamental LTE, 3GPP IMS call flows, the SIP protocol, QXDM, Wireshark, Xcal and similar logging tools, with ability to read logs and troubleshoot VoWiFi and VoLTE/IMS registration, attach and session establishment and complete call flows.
Knowledge in 3GPP/3GPP2 legacy and IMS Text messaging services desired.
Create and carry out test plans and test cases in multiple areas including those identified above.
Create device test plan and perform Feature Integration testing (FIT) for new network features. Work with 3rd party labs and test equipment providers to get them ready for Sprint device certification capabilities.
Work closely with Network and IT engineers along with chipset vendors and OEMs to successfully share testing results and also debug all network and device issues for VoWiFi/VoLTE & IMS. Heavy focus on field, lab and production testing for VoWiFi/VoLTE, IMS services and 911 Location based services (LPP & LPPe).
IMS architecture, VoWiFi/VoLTE Call flows and CDMA technologies
Working with probes such as SAS(Service Access Server), Empirix(CDMA), and Netscout
Experience and knowledge with IR92 & IR 94
AT&T Mobility Atlanta, Ga. 08/2015 - 12/2017
Integrated Cloud Incubation Team (IaaS Pod)
Engineer
Proven experience in cloud infrastructure project deals for hands on migration to public clouds such as VMware Integrated Open stack.
Strong background in Linux/Unix and/or Windows administration.
Experience in automation/configuration management using Puppet and Chef.
Experience with source code management tools such as Git, Bit bucket or equivalent.
Solid understanding of networking and core Internet Protocols such as TCP/IP, DNS, SMTP, HTTP and routing in distributed networks.
A working understanding of code and script such as: PHP, Python, Perl and/or Ruby.
Have a fully-flexible approach to working hours at the office, home, and working away from home during the week.
AT&T Mobility Atlanta, Ga. 06/2013- 08/2015
VoLTE Optimization Engineer
Expert knowledge of the EPC (Evolved Packet Core) and IMS (IP Multimedia Subsystem). This includes E// and ALU MMEs, Cisco SGWs and PGWs and the PCRF, PAS, MIND, HSS-EPC, DRA, APN-DNS, INET-DNS, and the MSP.
Familiarity with RF data collection/analysis tools and RF test equipment (e.g. Actix Analyzer, NEMO tools, DataPro, ActixONE, Accuver, frequency scanners, spectrum analyzers).
Running Optima reports for the RF team.
Reported health checks of BSS network elements and maintained client KPIs and SLA deliverables
Experience in Tools like Wireshark, Iris, JDSU
Experience in analyzing traces in ISA and PCAP files.
Strong knowledge of the EPC back haul and core including, Juniper SDG firewall routers, MSN, SIAD, MIPE, etc.
Strong knowledge in analyzing the PCRF equipment.
Analyzing the Gx interface between the PCRF and PCEF.
Ensuring that the Policies and Charging functions are being enforced.
Analyzing the diameter messages between the SPR and PCRF for subscriber policy rules.
Analyzing the SY,SP, and RX interfaces between different nodes.
Knowledge of protocols like S1AP, Diameter, GTP
Strong Knowledge of E-UTRAN or LTE RAN. This includes the signaling and functioning of both E/// and ALU eNodeB’s including messaging between UE and eNodeB and EnodeB to MME over the S1AP interface, and EnodeB to SGW over the S1U interface. Familiar with Gold Standards for eNodeB for both VoLTE and LTE standards. Also familiar with OFDM, neighbor lists and SRVCC handovers to nodeBs.
Strong knowledge of UE functionality which included the ability to read QXDM logs and use QCAT tool in order to view and access QXDM logs.
Expert knowledge of IMS call flows. This includes the functionality of the AMG which includes the SBC, P-CSCF, ATCF, ATGW, and IWF. Also expert knowledge of the IMS core which includes the HSS-IMS, DRA, I-CSCF, S-CSCF, SCC-AS, Telephony Application server (TAS), E-CSCF, GMLC, RLF, BGCF, MRF, BGW, MGWs, E// and ALU MGCF, DNS-IMS, and ENUM Databases and the CPM Application Server.
Strong knowledge of LTE architecture and protocols for the IMS platform.
Strong knowledge of SGSN architecture and 3G call flows in the EPC network.
Strong knowledge of SS7 call flows on both CDMA and GSM/UMTS. I have strong voice background and troubleshooting skills for all voice related issues. Expert on both Ericcson and Alcatel Lucent and Motorola MSCs (this includes all IS41 implementations for Roaming and Translations, Compaq HLRs, Tekelec and Alcatel STPs including GPort and Gflex functionalities, LNP databases, etc. Have strong knowledge of the 3G Data Core including SGSN and GGSN. Also, strong working knowledge of AAA, HA’s, PDN gateways, SMSCs and MMSCs and various voice mail systems.
Strong knowledge of the 3G RAN which includes the RNC, various node Bs, BSM, GPRS, etc.Antenna design and propagation knowledge.
Expertise in the following areas is preferred: Urban, suburban, and rural RF optimization, small cells, repeaters, amplifiers,antennas
Understanding of call processing (originations, handoffs) and data networking (switching/routing, TCP/IP).
Supports the installation and maintenance of UMTS via Ericsson, Lucent technologies.
Goodman Networks- AT&T Mobility Alpharetta, Ga.
Project Manager 1/2012 – 11-2012
Responsibilities were to project managed the coordination and implementation of the Core Network Nodes and that were being integrated into the Southeast Region Market (Georgia) for the AT&T Mobility.
Network Nodes included in this procedure the Ericsson RNC’S AND SGSN’S, Software and Hardware upgrades that would be introduced into Ericsson RNC’S and Nortel Switches.
Experience working with Smart Cell radios or a 3GPP EPC
Managed procedural scripts based on Ericsson, Tellabs/ALU MSN, Cisco products for various rehome/rebalance/reconfiguration change activities.
Managed Ethernet to the Cell migrations for the 3G Ericsson Node B equipment.
Strong understanding of L2/L3, 802.1q, DNS, NTP, TCP and UPD.
Interpret Ericsson TND,CIQ, Engineering Design Package (EDP) from ATT for MSN (Tellabs and ALU) work orders.
Provide expert level knowledge and troubleshooting of IuB and IuR UMTS transport network interfaces between various wireless nodes.
ManagedCisco SIAD Collector Circuit Rebalance conversions,Cisco Electrical to Optical port conversions and Ericsson 3G RBS OAM IP modifications for ATM backhaul.
Strong system administration knowledge to include deployment, configuration, and ongoing lifecycle management tasks
Running Optima reports for the RF team.
Reported health checks of BSS network elements and maintained client KPIs and SLA deliverables.
Astron Consultant (AT&T Mobility) San Francisco, Ca. 06/2011 – 10/2011
Project Manager
Served as Project manager and Development Manager for multiple design-build projects.
Work with Enterprise Access Management to understand what apps or tools they need migrated
Currently supporting new LTE deployment, TMA projects, and CSS to Power wave antenna swaps.
Integration of Identity and Access Management components
Experience working with Linux operating environments
Managed financial accounting projects including identity management, payroll, risk management and database access.
Work with business to understand which databases need to be migrated, create project around database migration
Shell scripting experience.
Supports the installation and maintenance of UMTS via Ericsson, Lucent technologies.
Verifies the status of GSM using the Ericsson, Nortel, Siemens OSS, and Nokia MML commands.
Implements sector locks/unlocks in all technologies per vendor's request.
Work more with the business and partner with technology to make sure project tasks are completed
Creates EIM (Equipment in Maintenance) for all scheduled projects due for cellular sites.
Monitors the status of alarms, and performs minor troubleshooting to resolve the problem.
Able to identify faults and change necessary settings using the Network Element Manager, and OMT tool.
Documents all site details such as, procedures, issues, and settings in the trouble ticket.
Matrix Resources AT&T Mobility 01/2010 – 06/2011
(Radio Access Network) Engineer
Centralized Assignment Team (CAT) engineer responsible for a variety of activities within the RAN, UTRAN, UMTS scope of work which includes Node B, MSN, RNC, MGW & DACs port assignments, IMA/PVP circuit path design, LTE, ETTCS (Ethernet to the Cell Site), design continued Granite documentation, and 3G Network support.
Excellent documentation skills, including the creation of documents for technical requirements, testing and build procedures, and the creation of high level and low level diagrams
Assists with Node B, MSN & RNC re-home projects and the continued re-balancing of the Network’s RNC equipment on UMTS/HSPA network
Experiencing in Scripting ALU Nodes to the RNC, MSN, ETTCS, etc.
Coordinate and design core elements for RNC, MSN, Node B, Interface Circuits (MSN-to-RNC/DACS/MGW)
Experienced with provisioning any small cell product being Metrocell, Picocell, or Femtocell.
Alcatel- Lucent 9370/7670 RSP, Tellabs 8860, Tellabs 5500, Alcatel 1631/1671, ALU 5620, Ericsson Node B 3206, Ericsson RNC 3810, Tellabs Metrowatch, Ericsson Moshell/Amos
Work with Ericsson’s EDP and TND design plans.
Assisted in re-homing over 8600 T1s, 2500 Node B sites in 2010
Sprint/Nextel Atlanta, Ga. 08/2009 – 01/2010
Network Technician II
•Provides support in a 24x7x365 days/year role that monitors and supports critical Sprint Telecommunication network elements using real time alarming of network faults, analysis, notification, trending of faults and escalation.
•Strong understanding of digital hierarchy: DS0, DS1, DS3 and SONET networks.
•Working knowledge of wireless networks, applications and features.
•Working knowledge of remote access and testing systems.
•Knowledge of access networks and customer premise equipment.
•Knowledge of TRS, FMS, NETSMART, TBS, FACTS, Net Analyst and REACT support systems
Verizon Business Atlanta, Ga. 02/2009- 08/2009
Premium Data Center Engineer
•Terminal electronic knowledge including Fiber Optic Transmission equipment manufactured by Nortel, Seimens, Alcatel, and Ciena, and Cisco at the DWDM and WDM levels.
•Knowledge of Sonet Ring architecture, along with DS1 through OC-192 level trouble shooting skills.
•Customer Premise Equipment installation and troubleshooting knowledge at all transmission levels including GIG-E.
•Monitor, analyze and restore all network outages on the Backbone Network. Provide technical support for T-1’s, DS3, OC-48, multiplexers and digital radios.
Internal Data Resources/ AT&T Wireless Atlanta, Ga. 06/2008-01/2009
Network Control Engineer
•Provide remote Tier 1 technical support, surveillance, troubleshooting, maintenance and repair of specific Nokia GSM, Lucent UMTS/ Voicemail platforms throughout the nation.
•Responsible for surveillance of Nokia or Lucent platforms.
•Responsible for daily troubleshooting, recovery and identification of major outage events for each platform.
•Platforms supported include - BTS, BSC, MSC, MGW, VM.
•Having expertise of Nokia GSM and Lucent
•UMTS/Voicemail platforms.
British Telecom/MCI Atlanta, GA 12/1991 - 03/2007
Switch Network Engineer II
•Coordinate the maintenance and repair of the communications and ancillary electronic equipment such as Ericsson AXE-10, NT DMS-250, NT BMX (MD110).
•Monitor the Global Network and Management systems performance by identifying traffic and system problems using an alarm management system
such as Egress/Carrier terminations
•Testing and troubleshooting DS1 and DS3’s on various systems in a 7X24 365 day operation to include escalating faults to the customer’s vendors and LECs.
•Provide directions to the Field Engineers to analyze complex equipment problems with recommendations and coordination of the repair or replacement of the equipment
•Managed, Implemented, and completed restoration plans for catastrophic Fiber Optic failures. Provide second level customer support to major accounts such as Nasdaq, Merrill Lynch, and Microsoft.
•Responsible for investigating and troubleshooting Customer Service inquiries to include understanding the TCP/IP and OSI models for Switched Voice and Data, Point-to-Point data circuits, Frame Relay, Packet, Internet Access, ISDN PRI/BRI.
Military
US Army Pentagon 10/1986 – 06/1991
Technical Specialist
Provide quality telecommunications support for users worldwide to include the Pentagon, White House, Joint Chiefs of Staff, and the Central Intelligence Agency.
Activation and prompt restoration of circuits through rapid and logical troubleshooting, rerouting of priority of circuits, maintaining and troubleshooting narrow and wideband, Facsimile, voice and data.
Working knowledge of Packet Switching, Remote Job Entry, Dedicated and Dialup circuits. Point to Point configurations and also LAN/WAN.
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