5G Test Engineer

Reference: GCSJOBS/001_1774996611

Key Responsibilities

5G Network & Feature Testing

  • Execute functional, performance, interoperability, and regression testing for 5G NR (NSA & SA) features.
  • Validate end‑to‑end 5G services including VoNR, data throughput, mobility, slicing, and QoS features.
  • Conduct device and network testing across RAN, Core, and Transport layers.

Test Planning & Execution

  • Develop test plans, test cases, and test scripts aligned with 3GPP standards.
  • Perform field testing and drive testing, collecting logs and analysing KPIs.
  • Use tools such as Keysight, Rohde & Schwarz, Anritsu, Spirent, TEMS, Nemo, QXDM/QCAT, etc.

Analysis & Troubleshooting

  • Analyse logs for Layer 1/2/3 using industry-standard tools.
  • Identify issues related to call flows, mobility failures, KPIs, throughput degradation, RF issues, and signalling.
  • Work closely with network engineers, vendors, and OEMs to resolve defects.

Integration & Validation

  • Support 5G RAN (gNB) and Core (5GC) integration activities.
  • Participate in software updates, feature validation, and new product introduction testing.
  • Validate interworking between LTE-5G, NSA-SA transitions, and multi‑vendor environments.

Documentation & Reporting

  • Prepare detailed test reports, defect logs, and performance summaries.
  • Present findings to internal and client stakeholders.
  • Ensure compliance with 3GPP, ETSI, and operator‑specific standards.

Required Skills & Experience

  • Strong understanding of 5G NR architecture, 5G Core, RAN protocols, and air interface concepts.
  • Hands‑on experience in network or device testing (lab or field).
  • Proficiency with log analysis tools such as QXDM, QCAT, TEMS Discovery, or similar.
  • Familiarity with protocol stack (L1/L2/L3) and signalling procedures (RRC, NAS, S1, Xn, NGAP, etc.).
  • Experience with RF testing, KPIs, and radio parameters.
  • Knowledge of LTE/VoLTE/IMS is an added advantage.
  • Strong analytical, troubleshooting, and communication skills.

GCS is acting as an Employment Business in relation to this vacancy.

COMPETITIVE SALARY

Philadelphia

Contract

Added 31/03/2026
Reference: GCSJOBS/001_1774996611

5G Test Engineer

Philadelphia
Contract

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