Cellular Certification Testing Engineer(4G/5G)

Job Title: 4G/5G Cellular Certification Testing & Automation Testing Engineer.

Location:

Experience:

Join Time:

Job Summary:

4G/5G Cellular Certification Testing Engineer

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:

• 4 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.

Preferred Qualifications:

• Experience working with major

  chipset vendors

  (Qualcomm, MediaTek, etc.).
• Prior work on

  test automation frameworks

  for embedded/mobile device testing.

test case management tools