Cellular Certification Testing Engineer(4G/5G)

4 days ago

Bengaluru, Karnataka, India L&T Semiconductor Technologies Full time ₹ 15,00,000 - ₹ 25,00,000 per year

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:

  • 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.

Knowledge of
test case management tools
and
CI/CD tools
(Jenkins, Git)

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