- Perform manual and automation call testing for cellular features across 2G, 3G, LTE, VoLTE, and 5G NR (SA/NSA).
- Analyze NAS and RRC layer messages and validate modem behavior against 3GPP specifications.
- Create, upgrade, and execute test cases aligned with IMS, 4G, and 5G requirements.
- Use QXDM and QCAT for modem testing workflows and analyze logs using Wireshark.
- Log, track, and manage defects in JIRA and support root-cause analysis with explicit evidence.
Skills Required:
- 1 - 3 years of experience in modem/cellular testing or protocol-based testing
- Cellular protocol knowledge: NAS and RRC message analysis for 2G/3G/LTE and 5G NR (SA/NSA)
- Strong understanding of 3GPP specifications and call feature behavior (including VoLTE)
- Hands-on testing experience including test plan creation, test case execution, and validation of IMS/LTE/5G requirements
- Tooling experience: QXDM, QCAT, Wireshark log analysis, and defect tracking in JIRA
Good to Have:
- Validation experience for modem validation workflows and test evidence preparation
Education: Degree in Engineering/Technology (or equivalent technical education)