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(15h Left) Cellular Certification Testing Engineer(4G / 5G)
L&T Semiconductor TechnologiesBengaluru, Karnataka, India8 days ago
Job description4 to 8 years of hands-on experience in 4G / 5G mobile device testing and certification. Experience with PTCRB, GCF, FCC, and at least one US carrier certification process. Strong understanding of LTE, LTE-A, 5G NR (NSA / SA), VoLTE, VoNR technologies. Proficiency in using test tools such as Anritsu, Keysight, R&S, Spirent, etc. Experience with automation testing frameworks and scripting languages (preferably Python, but Shell, Perl, or JavaScript also valued). Hands-on experience with log analysis tools (QXDM, QCAT, etc.) and debugging protocol / RF issues. Good understanding of 3GPP protocol stack, network signaling, and call flows. Experience working with major chipset vendors (Qualcomm, MediaTek, etc.). Prior work on test automation frameworks for embedded / mobile device testing.
Job Title : 4G / 5G Cellular Certification Testing & Automation Testing Engineer.
Location : Bangalore
Experience : 4 to 8 Years
Join Time : Immediate to 30 Days.
Job Summary :
We are seeking a skilled 4G / 5G Cellular Certification Testing Engineer with experience in both manual and automation testing for cellular protocols, along with hands-on expertise in certification processes such as PTCRB, GCF, FCC, and carrier certifications (e.g., Verizon, AT&T, T-Mobile). The candidate will be responsible for leading device testing, automation framework development, and managing end-to-end certification cycles.
Key Responsibilities :
- Perform manual and automated testing of 4G / 5G protocol, RF, and application-level functionalities.
- Lead and execute certification testing processes including PTCRB, GCF, FCC, and carrier certifications (AT&T, Verizon, TMO, etc.).
- Design and implement automation test scripts and frameworks for cellular device testing (using Python or other scripting languages).
- Conduct regression, stability, IOT (Interoperability Testing), and field testing using test tools and automation setups.
- Debug and analyze logs using QXDM, QCAT, QTRACE, Wireshark, and similar tools.
- Collaborate with cross-functional teams including development, QA, certification labs, and carrier teams to address and resolve test issues.
- Maintain detailed documentation for test plans, test cases, defect logs, and certification reports.
- Stay up to date with the latest 3GPP standards, carrier requirements, and certification processes.
Required Skills & Experience :
Preferred Qualifications :
Knowledge of test case management tools and CI / CD tools (Jenkins, Git)
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15H Left • Bengaluru, Karnataka, India
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