Keith Rivers Email & Phone Number

• IP/Service Call flows• Develop new end-to-end call flows for Services in the 12 datacenters and in the Cloud Network (D2)• Update/develop call flows for services with the new 5G element details in Existing data centers Requirements:• End-to-end call flows will be based on initial templates• Working with the vendor Brocade/Extreme Networks in monitoring the health and performance of the entire network infrastructure in a single unified platform. Alleviate networking points of friction with increased visibility, and leverage network logs and metrics to speed up troubleshooting across all network and IT devices. • ·Working closely with the vendor Brocade/Extreme Networks in Load Balancing traffic to the Serving Gateway via the MLX and SLX ports on the Brocade 9920 equipment. • Call flows are required per NDC/APN/Service/Function. (12 NDCs* approximately)• Each call flow will be detailed to include data such as specific server names, IP addresses and ports, routers, firewalls, load balancers, packet core elements.• Include Fail over mechanism• Include back haul to other data centers• Engineering Work Requests• Complete work orders to support new routing and Migrations.• Issue work orders to Operational engineering to implement Site specific Method of Procedures (SMOPs) Implement standard D2/5G templates for proposed 5G D2 locations.• Coordinate the implementation of the work orders with PMO and IP Ops, and external partners.• Perform/coordinate connectivity testing during maintenance windows (e.g. security Ops, IP Ops, Data Core OPs, external partner)• Expand on the IPCore engineering outputs such as new call flows/network design for new 5G elements• Lead and coordinate Development and deployment of Production Engineering Plans (PEP) with other engineering groups (Services, Infrastructure, OAM, SecEng, etc.)

• Work with a team to help provide detailed design for new packet broker deployments across all 52 SAP sites, including:· Remote probing and next generation packet broker initiatives· Creating Method Operating Procedures (MOPS) to detail designs, spreadsheet, and other artifacts required for installation· Review email requests, remedy tickets, and investigate user discrepancy issues.· Working closely with the vendor Brocade/Extreme Networks in Load Balancing traffic to the Serving Gateway via the MLX and SLX ports on the Brocade 9920 equipment. · Working directly with the Gigamon team in capturing pcap data packets for the Milky Way projects. Also working with the GCB for webscaling, V-series for Openstack and F5 Pcapper Load balancing for vXLAN and SR(Segment Routing) eNSE with the Gigamon team.· Provide Packet Broker planning and engineering designs and direction to the local Engineers across the country· Interfacing with a team of Keysight / Ixia Engineers to produce and implement Keysight / Ixia configuration on their equipment· Engage in sync up meetings with multiple teams and/or 3rd party vendors for troubleshooting network related issues.· Communicating all designs, standards, and other necessary information to engineers, project managers, and other stakeholders anytime they need with report summaries· Composing diagrams, spreadsheets, and reports to facilitate sharing of information and designs· Aggressively pursuing visibility solutions for Network Function Virtualization· Assisting our Ixia Operations team anytime they need help· Owning overall Packet Broker health and performance: Conducting or directing regular audits, ensuring alarms are sufficient and healthy, and continuously working to take failure out of the environment

Espoo, Southern Finland, Fi

• 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. • IP tracing in a complex network & multi-protocol analysis. ( Net Scout/IMS & EPC)• Familiar with the following protocol analyzing tools (Wireshark, XCAL, QXDM).• Troubleshooting experience and familiar with analyzing traces and logs for KPI’s.• Working knowledge of the Nokia 7750 router in a 4G/5G network cloud environment.• Experience with Payment, Policy and Charging -- PCRF products/platforms • Using PCRF Software deployment called SPS(Smart Plan Suite) in Virtualized or Openstack/Cloud environment• System testing and debugging, experience with RHEL Openstack, CBAM, gathering traces, logs etc• System upgrades using the Cloud Band Application Manager (CBAM)• DAGs Suite testing using Nokia Airflow for Automation• Experience as Payment Solution Architect, Policy Professional, Integration and Testing• Reviewing business use cases/requirements with Customer for PCRF application• Conducting/executing Design Workshop with Customer• Designing the policies/rules sets for PCRF• Validating Rulesets/policies in a Lab environment• Development and testing of MOPs• Proficiency in TCP/IP networking, LANs and network infrastructure• Fundamentals of SDN, NFV (Network function virtualization), and Orchestration• Knowledge of JSON objects and data structures• Knowledge in any of Cloud solutions and their API’s such as Openstack and VMWare• Good knowledge and experience with Linux and command line interface• Good experience with 3G and 4G networks integration for Ericsson and other equipment vendors• In-depth knowledge of 3G/4G/5G network architecture and protocols• System integration for Diameter, Radius, SNMP, LDAP etc. interfaces• Understanding of network performance and KPI's for optimal delivery

Overland Park, Kansas, Us

• 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).

• 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, • 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

Overland Park, Kansas, Us

Create and manage Sprint device specifications for VoLTE, IMS along with related IP Services. Proficiency in fundamental LTE, 3GPP IMS call flows, the SIP protocol, QXDM, Wireshark, Xcal and similar logging tools, with ability to log, read logs and troubleshoot 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 VOLTE & IMS.Heavy focus on field, lab and production testing for VoLTE, IMS services and 911 Location based services (LPP & LPPe). IMS architecture, VoLTE Call flows and CDMA technologiesExperience and knowledge with IR92 & IR 94

Dallas, Tx, Us

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.

Dallas, Tx, Us

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.Strong knowledge of the EPC back haul and core including, Juniper SDG firewall routers, MSN, SIAD, MIPE, etc.Experience in Tools like Wireshark, Iris, JDSUExperience in analyzing traces in ISA and PCAP files.Knowledge of protocols like S1AP, Diameter, GTPStrong 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.

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.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.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.Running Optima reports for the RF team.Reported health checks of BSS network elements and maintained client KPIs and SLA deliverables.

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.Assists with Node B, MSN & RNC re-home projects and the continued re-balancing of the Network’s RNC equipment on UMTS/HSPA networkExperiencing 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/AmosWork with Ericsson’s EDP and TND design plans.Assisted in re-homing over 8600 T1s, 2500 Node B sites in 2010