Wireless Core Network Engineer

Role: Wireless Core Network Engineer

Location: New York, ATLANTA(onsite)

Skill : 5g foundation

• Core Testing and Troubleshooting Expert Responsibilities.
• Collaborate with Core/IMS Network vendors and Core testing tool vendors in building Core lab (private and public cloud).
• Integrate and Deploy core network/IMS capabilities in the Lab, working both in an individual and team capacity.
• Review/interpret requirements and translate them into Systems specifications/requirements (end to end design/Call flows/System architecture/Interface definition).
• Provide inputs and support to the Testing team in creating/executing test plans.
• Provide leadership in the Core Testing areas.
• Facilitate live troubleshooting of lab/production network issues, using overall systems, testing tools, UE, and logs.
• Assist in debugging and identifying root cases for the issues/defects experiences in lab or production environment and accordingly document them in JIRA systems.
• Manage multiple tasks by multi-tasking and accomplish goals by working across the organization with various teams.
• Contribute to Test Automation effort, by writing testing scripts for the Testing tools (Spirent Velocity, Keysight)

Qualifications:

• Bachelor’s/Master’s Degree in Electronics/Computer/Communications Engineering.
• 8 years of experience in the wireless industry.
• Extensive understanding and experience in 4G EPC/5GC core, CUPS, virtualized Network Functions.
• Thorough understanding of Core Network architecture, as describes in 3GPP standards (Rel 15 & 16) and technology from previous generations.
• Knowledge and/or documented work experience in the following core functions: SMF / UPF / AMF / NRF / NSSF / PCF / UDM / AUSF / MME, SAEGW, SPGW, or ePDG, and IMS components.
• Hands on experience in designing, implementing, integrating, and deploying solutions in the EPC (Evolved Packet Core).
• Experience in working on testing tools used for testing/validation of the core network solutions Understanding 3GPP Core Network (EPC, 5GC) and IMS is minimum requirement.
• Understanding of end to end call flow scenarios, such as VoNR, ViNR, inter carrier roaming (n14, N26), EPS fallback, SMS, MMS, E911 , Extensive understanding of software systems/services running in the virtualized environments (Kubernetes, AWS) and Core Network Functions (NF’s , VNF/CNF)
• Experience in scripting and developing test automation Understanding of Core Network performance KPI’s/metrics such as, latency/throughput considerations and issues from core cloud deployment to Data Center locations Understanding and experiences with virtualized networks, orchestration, and automation across a comprehensive network architecture.
• Working knowledge of IP networking and cloud/MANO technologies (Kubernetes).
• Hands on experiences in testing tools, such as UE simulators, UE debuggers, Load/Traffic generators, packet core simulators.
• Excellent skills with Radcom, IRIS and other tracing tools are mandatory.