Senior LTE/5G Network Test Engineer (VoLTE/IMS, Wireshark, QXDM)

Senior LTE/5G Network Test Engineer

Onsite | W-2 | U.S. Citizen / Green Card Only

Role Overview

We are seeking a hands-on LTE/5G Network Test Engineer to perform end-to-end testing across RAN, Core, and IMS environments. This role is 100% onsite, 5 days/week, and is available to U.S. Citizens or Green Card Holders on a W-2 basis only.

Key Responsibilities

• Perform LTE/5G NR, VoLTE, IMS, and data-path testing

• Validate attach, registration, bearer creation, PDU sessions, VoLTE/VoNR

• Analyze logs (RRC, NAS, SIP, RTP, Diameter)

• Build/manage test beds (UE, SIM, APN, eNB/gNB, EPC/5GC)

• Use Wireshark, QXDM, QCAT, Radcom, IRIS, IXIA/Keysight

• Execute full regression, performance, IOT, and KPI testing

• Document defects, RCA, KPI dashboards, and test summaries

Required Experience

• 5+ years LTE/5G testing

• Strong VoLTE/IMS debugging

• Proficiency with QXDM/QCAT, Wireshark

• RAN + Core + IMS troubleshooting

• 3GPP standards knowledge

• U.S. Citizen/Green Card Holder

• On-site 5 days/week

• W-2 only

Preferred Background

• Carrier acceptance testing

• OEM device testing

• Private 5G / CBRS

• Satellite/NTN exposure