Responsibilities:
- Execute and validate test cases for Voice/IMS/VoNR features including MO/MT calls, EPS Fallback, E911, call hold/unhold, and conference calls
- Perform 5G/NR Telephony testing on NSA/SA configurations using RF lab setups (Keysight/TopCat/WirelessOne)
- Conduct regression testing across L0–L4 test cycles and build-to-build validation
- Analyze, triage, and report defects; track issues through resolution using internal bug tracking tools
- Collaborate with modem, RIL, and IMS teams for root cause analysis
- Maintain and update test case documentation and execution reports
- Support carrier certification and platform validation test cycles as needed
Required Skills & Qualifications
- 2+ years of experience in Android Telephony / IMS / RIL testing
- Strong understanding of VoLTE / VoNR / IMS protocols (SIP, RTP, XCAP)
- Hands-on experience with 5G NR (NSA/SA) test environments
- Familiarity with Android telephony stack (RIL, Telephony Framework)
- Experience with ADB, logcat, QXDM/QCAT for log analysis
- Knowledge of test execution and defect tracking tools
- Good analytical and debugging skills
- Ability to work independently in a fast-paced lab environment
