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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # 5G Core SME- User Plane Specialist - **Company:** Lightbridge Communications Corporation - **Location:** Philadelphia, PA, United States - **Contract:** Permanent contract - **Skills:** LTE (Telecommunication), Software Debugging, Network Address Translation, Internet Protocol, Internet Protocol Security (IP SEC), IPv4, IPv6, Routing, Pattern Recognition, TCP/IP, Transmission Control Protocol (TCP), Wireshark, Virtual Local Area Networks, Wireless Networks, Data Logging, Performance Testing, Tablet Computers, Evolved Packet Core (EPC), Cisco, Network Optimization - **Published:** July 24, 2026 - **Apply:** https://lcc.mua.hrdepartment.com/hr/ats/JobSeeker/createAccount ## About the Role The successful candidate must possess a mix of broad networking knowledge, knowledge of virtualized platforms, • Expertise with 3GPP and other relevant standards for mobile networks • Expert knowledge Deep Packet Inspection (DPI), Video Resolution Accuracy measurements • Expert knowledge of techniques for detection and pattern matching algorithms offered by DPI ecosystem and vendors • Experience in deep and shallow packets inspection technologies and policy management and enforcement. • Experience in TCP, video and traffic optimization. • Experience in GiLAN, external DPI systems, CGNAT, Service chaining, Border GWs. • Experience in user plane path tuning and enhancements, MTU / MSS configuration strategy, UPF deployment and distribution strategy. • Knowledge of ETSI and MEF standards for network and service orchestration • Experience in testing 5G Core Interfaces (N1, N2, N3) with Core NW debugging experience on NSA and SA configurations Subject-matter expertise with Evolved Packet Core (EPC) and 5G core networks employed by Mobile Network Operators (MNO) • Familiar with 5G UE, AMF identifiers • Core network protocols used for 5G Core and EPC Network • Knowledge of IPv4,IPV6, Dual Stack • Knowledge of IP and session transition options across 5G Core Network Functions • Knowledge of interworking of Tracking Areas and UE reachability management • IP package routing, NW logging tools and debugging capabilities • Plan and build test lab environments for functionality and performance testing. • Experience with Subscriber Policy (HSS / HLR) network elements • Offline / Online Charging architectures (such as PCRF Gx and OCS Gy, interfaces) • AAA, RADIUS, Diameter, EAP, LTE, 5G, Soft GRE. Experience using protocol communications test equipment and tools (protocol analyzers, LTE system simulators, analyzers and packet sniffers). Exposure to commercial test simulators and test systems such as Spirent, Aeroflex, Tektronix • Strong knowledge of Wireshark or other IP protocol analyzer • Good IP knowledge and routing protocol, IPv6, TCP/IP, UDP, VLAN, IPSec, NAT, IP forwarding • Exposure to Cisco router configuration is plus ## Description As part of the Client Wireless Core Team, the Wireless Core Engineer will join the team of passionate engineers with start-up spirit to test, deploy and debug customers standalone 5G network. The candidate should bring innovation and strong execution skills to help deploy/implement customer Mobile Data Networks., • Evaluates, Deploys and supports wireless core network functions based on Service Based Architecture • Leads Work stream for N3, N4 and N6 interfaces and policies for optimal placement and functioning of the 5G UPF • Engage vendors on performance and functionality of 5G Core functions tied to UE choosing appropriate network functions and update of UE/session service sequences. • Able to prepare 4G/5G Core test strategy, test plan and test execution of new network uses cases. Engages with vendor personnel regarding new services and features as well as upgrades. • Ensures that solutions adhere to defined standards and best practices and/or assist in the development of these standards and best practices. • Routinely researches, analyzes, tests, retests, and troubleshoots complex problems. • Participates in knowledge transfer, documentation and information sharing while staying abreast of new technology/technical areas. Â, VIENNA, VA - March 08, 2013 - LCC International, Inc. (LCC), a global leader in advanced wireless, wire-line voice and data turnkey services announced today that it has been selected to provide turnkey 3G RF planning and optimization services for a leading telecom operator in Mexico, in support of the operator's newly launched 3G network. Feb.19.13 LCC AWARDED FIRST NATIONWIDE 4G BENCHMARKING PROJE... Telenor and Telia, two of Scandinavia's largest telecom providers have joined forces to create the best customer experience within smartphones, tablets and mobile broadband. VIENNA, VA - February 19, 2013 - LCC International, Inc. (LCC), a global leader in advanced wireless, wire-line voice and data turn-key services announced today that it has been selected by Telenor and Telia, Scandinavia's two largest telecom providers, for a nationwide benchmarking project in Denmark. Jan.10.13 LCC AWARDED A MULTIYEAR ENERGY MANAGEMENT PROJECT... VIENNA, VA - January 10, 2013- LCC International, Inc. (LCC), a global leader in advanced wireless, wire-line voice and data turnkey services announced today that it has been awarded a multiyear energy management remote monitoring system deployment project for a major telecom operator in Pakistan. Dec.10.12 E-FIBER OF NETHERLANDS SELECTS LCC FOR FIBER TO TH... VIENNA, VA - December 10, 2012 - LCC International, Inc. (LCC), a global leader in advanced wireless, wire-line voice and data turnkey services announced today that it has been selected by E-FIBER for a turnkey Fiber To The Home (FTTH) deployment project in Boekel, Netherlands. E-FIBER develops, constructs and operates fiber optic networks. 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