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.
5G Test Engineer
Philadelphia
Contract
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