5G Core SME- User Plane Specialist

Tech Mahindra Network Services • Philadelphia, PA

6d

About The Position

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. The successful candidate must possess a mix of broad networking knowledge, knowledge of virtualized platforms.

Requirements

• 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

Responsibilities

• 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.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed