Matt Vossoughian **** Patrick Circle SW

Email: adp546@r.postjobfree.com Vienna, VA 22180

Tel: 703-***-****

Summary:

Over 25 years of experience in Wireless, broadband, telecommunication engineering, signaling, switching, design and development for broadband, Cellular and satellite communications utilizing LTE/Wimax/CDMA/GSM as well as Land Mobile Radio system design and configuration.

Leading cross-functional, technology-oriented planning or data implementation projects – including working with all levels of executive leadership and technical staff side of organizations.

Lead Projects for various broadband data, VoIP, VoLTE, RCS and related services, duties included design, planning, network migration, test and validation, Billing verification, implementation support.

Expert knowledge and experience in architecting and designing 3G, LTE wireless networks including EPC, Transmission Systems, IMS and LMR Network Services

Professional Experiences:

Conduent-Columbia, Maryland-Principal Communication Engineer 9/2017-Present

Work with Land Mobile Radio communication system as well as cellular router and wireless network carriers to design end-to-end communication between the Vehicle transit equipment and Fixed End equipment. In vehicle transit communication the, Vehicle location, video/voice traffic, schedule data etc., use cellular wireless network and Wi-Fi networks to communicate with the dispatch network where LMR system was also used for voice/data traffic delivery as backup. Configured various type of the Radio systems like Motorola XTL2500/5000, APX 4500/6500, Harris and Tait radios. Designed cellular infrastructure and configured various type of cellular routers like Cradle-point IBR 650/900/1700 and Sierra wireless MG90.

FirstNet-Reston, VA-Senior Principal Consultant 9/2016-9/2017

Research and documentation of the architect and design impact associated with subscribers using FirstNet RAN or States RAN (Opt-out States) to commonly utilize the FristNet Core equipment.

Document and present design impact to BSS/OSS, Element/Network Management System, Billing, Provisioning and Roaming condition.

Inmarsat-Reston, VA-Network Engineer Consultant 3/2016-9/2016

Researched Inmarsat various bands Satellite and wireless networks and prepared the requirements for a common Network Management System and designed the NMS deployment through Inmarsat MPLS.

Work with vendor community to ensure compliance with Inmarsat network requirements.

Prepare test plan for validation of Network Management System functionality for all subsystems.

Vista Research Inc.-Arlington, VA-Wireless network Engineer 10/2014-3/2016

Designed customized LTE network and RF equipment for wireless coverage area through “Aerostat” balloon.

Use oral and written presentation, presales and RFPs to act as technical interface between customer and company sales personnel.

Perform engineering functions associated with infrastructure development, network design, service implementation, design solution approaches that optimize architecture across customer needs, business constraints.

Worked together with the RF team to develop specialized RF prototype equipment. Researched, Evaluated and worked with LTE core, eNB developer, LTE device vendor communities for LTE Band 7 equipment deployment.

Plan and implement proven processes and procedures for staff guidance in the life cycle in responding to technical sections of RFPs. work with cross-functional teams to craft winning solutions.

Prepared the test plan for eNB, LTE core and IMS infrastructure equipment validation. Designed various network configuration of LTE network including microwave link network access and IMS VoLTE design.

SAP Mobile Services-Reston, VA-LTE Engineer 10/2013-10/2014

Designed diameter network to support International LTE roaming services through SAP IPX, GRX networks.

In-depth knowledge of TCP/IP and “Stream Control Transmission Protocol” (SCTP) transport protocols used in IPX for Diameter messaging protocol communication.

Worked with the customers to support network access, Provisioned core equipment, tested the customer’s setup.

Managed and trained technical support team in India to perform activation, Lua scripting for customization of diameter messages and troubleshooting of customer’s end to end connectivity and traffic flow.

Trained “Sales” and “Customers” about SAP International Diameter network setup and capabilities.

Worked with Rich Communication Services (RCS) vendor community for RCS deployment of the SAP network and developed the test-plan to support and validation of various RCS services.

Worked with system and network engineering teams to design Diameter network redundancy, failover procedure and Virtual IP deployment for LTE traffic network.

LightSquared- Reston, VA-LTE Network Engineer 04/2010-10/2013

Designed LTE network to support Terrestrial and Satellite network VoIP/data traffic.

Extensive Knowledge in the design of IMS Core and service platforms for LTE networks

Worked with vendor community and engineering teams to ensure business requirements are met.

Designed Satellite data network access to ensure both Satellite and terrestrial wireless networks sharing a common LTE Core network.

Designed the LightSquared VoIP network for LTE wireless terrestrial as well as Satellite network to work with “IP Multimedia Subsystem” (IMS) infrastructure.

Developed detailed End-to-End test strategy for both wireless terrestrial/Satellite networks to validate Core network 3GPP/3GPP2 standards compliance as well as OSS/BSS networks.

Developed 4G test strategies to include, test requirements, test planning, test case design, test environment configuration, test execution.

Developed test requirements matrix, test cases and define the test environment. Issue root cause analysis, issue resolution validation and test reporting.

Worked with Lab personnel to ensure the test environment is implemented to specifications and define/request test equipment and test devices.

Supported Network Deployment and System Integration which includes field integration, test strategy and architecture guideline developments as well as vendor contract negotiation.

Clearwire Inc.-Herndon, VA-Strategy Engineer 03/2007-04/2010

Detail study and evaluation of Wimax/LTE 4G Core network products for technology selection process. 4G products includes Access Service Network Gateway (ASN-GW), PDN Gateway and Mobility Management Entity (MME) from Nokia/Siemens, Ericsson, Tellabs/Wichorus and Huawei.

Analyze RFPs, identify pivotal technical elements and Identifying key solution elements of RFP/RFIs.

Writing and editing sections of complex proposals in response to RFIs, RFPs and RFQ.

Designed Wimax network core architecture for data and VoIP traffic. The core design included Layer 2/3 failover support by implementing L2 PBB-TE tunnel switch, SONET ADM/circuit and OSPF failover design as well as BGP reachability protocols and OSPF areas cost design.

Development of the overall broadband architecture as well as market-specific detailed designs for the Wimax core Network and identify key incremental enhancements to the Wireless broadband network.

Designed Deep Packet Inspection (DPI) cluster to support load balancing scheme in the core network.

Developed End-to-End QoS mapping schemes including RAN QoS mapping to Differentiated Services Code Point (DSCP) and mapping into link specific schemes for simultaneous flows.

Worked with ASNGW and multiple RAN providers such as Motorola, Huawei and Samsung to ensure compliance with NWG 1.3.1+ standard and core/RAN multivendor interoperability assurance.

Sprint Inc.-Reston, VA-Senior Systems Engineer 04/1999-03/2007

Responsible for end to end design and deployment of new services like Prepaid, Local Number Portability, location based services, Ring Back Tone, etc.

Worked effectively with numerous telecom manufactures to develop new services and technologies to support next generation networks components, Soft-switch, IP-based Multimedia Subsystem (IMS), SIP signaling and signaling link management.

Responsible for development of technical content and technology specifications to provide technical direction to vendors and Sprint engineering department.

Developing and operating customers facing proof of concept test facilities. Tests and validates to ensure system designs meet operational and functional requirements.

Coordinated the ISUP compatibility developments between Sprint and Nextel international market.

Managed trials in Sprint/Nextel lab for new services to ensure Network compliance.

Designed signaling network and worked closely with Nextel international team for expansion of seamless handoff between Sprint/Nextel and Nextel international in South America.

Evaluate SS7 over IP (IPS7) transport utilizing Nextel’s ATM Packet data network.

Responsible for network design to add new services into Sprint/Nextel network by researching the existing switching/signaling capabilities.

IRIDIUM LLC-Washington DC, DCA-Senior Systems Engineer 06/1997-07/1999

Global Network design support for 66 Iridium Satellites, 12 Earth Stations and IS-41/GSM Roaming Partners.

Involve in SS7 Signaling network design, Office data upgrade and Engineering to Interface with GSM and

IS-41 Roaming Partners using “Aldiscon” Protocol converter.

Worked closely with Motorola and Iridium teams to manage Earth Station equipment integration testing in Russian, Italian and Korean Earth Stations.

Managed test plan implementation, investigated test equipment and documented various types of call scenarios signaling performance for Satellite and Cellular roaming services.

Designed international roaming architecture between Iridium GSM system and IS-41 network.

Hands on experience with various Earth Terminal equipment i. e. D900 switch, ETS, ETC, MOC, etc.

Comcast-King of Prussia, PA-Network Systems Engineer 07/1992-06/1997

Network design and implementation, long term planning, forecasting, ordering facilities.

Planning, testing and operations of Digital transmission systems, Mobile Switching Systems, data communications network, Microwave Radio, Intelligent Network.

Managed cell site interconnect, PSTN trunking and MSC/POP entrance facilities. Duties included Engineering, budgeting and procuring additions and upgrades to the network infrastructure as well as future requirement.

Designed, Managed and implemented network access for the Cellular Digital Messenger Services, Voice recognition, CDPD, Personal Numbering Service, Vehicle Location Identification, RF Fingerprinting, Prepaid and Group-talk system facilities for entire Comcast cellular market.

Metrophone- King of Prussia, PA-Switch Engineer 11/1990-7/1992

Monitor critical triggers of the switch for traffic growth and subscriber increase.

Traffic analysis of the usage counters associated with various elements of a cellular system.

Engineering for future growth. Analysis of subscriber loading and load distribution.

Responsible for DMX & IS-41 protocol hand-off between Metrophone cellular switch and Cellular One, Equal Access routing and implementation.

Worked with marketing teams to introduce and design customized VPN with major Corporations.

Education: Education: M. S., Electrical Engineering

The Royal Institute of Technology, Sweden 1990

B. S., Electrical Engineering

The Royal Institute of Technology, Sweden 1987

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