RF Test & Validation Engineer — 3GPP/O-RAN Lab

Amazon Inc.; Redmond; On-site; AUD 169,000 - 230,000; Full time

Job summary

Amazon is seeking a hands-on Test Engineer to join the CommSys team within AMZ Leo RF/Modem Dev, responsible for validating 3GPP- and O-RAN-compliant network elements across lab and integration environments.

The ideal candidate is comfortable working at the intersection of RF hardware, software, and automation — executing test campaigns, debugging complex system issues, and collaborating closely with integration, development, and automation teams to ensure product quality and standards

Qualifications

• Bachelor's degree in Electrical or Communications Engineering or a related field.
• Solid understanding of 3GPP (LTE/5G NR) architecture and O-RAN network architecture and interfaces.
• Experience with lab test equipment such as UE simulators, core network emulators, channel emulators, signal generators/analyzers, and protocol analyzers.
• Experience with debug/diagnostic tools such as QXDM for OTA log analysis.
• Experience with scripting/automation (Python strongly preferred; familiarity with pytest, Robot Framework, or similar is a plus).
• Strong debugging skills across HW, SW, and network layers.
• Excellent collaboration and communication skills to work across multidisciplinary teams.

Responsibilities

• Plan and execute test cases on lab setups covering functional, performance, conformance, and regression testing.
• Collect, organize, and analyze test data/logs (e.g., protocol traces, KPIs, OTA logs) to assess pass/fail criteria.
• Triage test failures — distinguishing between HW faults, SW bugs, configuration issues, and test environment problems — and drive issues to resolution with the right owning team.
• Produce clear, well-documented test reports and defect write-ups for engineering and stakeholders.
• Work closely with Hardware, Software, Integration, and Automation teams to coordinate test schedules and resolve blockers quickly.
• Support the integration team in bringing up new HW and SW builds on the test bench, including initial sanity checks and bring-up validation.
• Act as a liaison between test findings and development teams, providing actionable feedback to accelerate fixes.
• Build, configure, and maintain new lab test setups, including equipment racking, cabling, network configuration, and tool installation.
• Continuously improve existing setups for reliability, repeatability, and test coverage.
• Perform HW and SW upgrades/updates on test equipment and DUTs, ensuring minimal downtime.
• Debug and resolve lab/setup-level issues to keep test lines operational.
• Maintain accurate setup documentation/inventory (topology diagrams, equipment lists, firmware/software versions).
• Develop and maintain scripts (Python, Shell, TCL, or similar) to automate repetitive test procedures and setup configuration tasks.
• Build or extend automated test frameworks to increase test throughput and reduce manual effort.
• Integrate automated tests into CI/CD or regression pipelines where applicable, and maintain test automation health.

Skills

3GPP LTE/NR knowledge

O-RAN stack familiarity

RF hardware understanding

Test automation scripting (Python)

Test execution and data analysis

CI/CD integration (Jenkins/GitLab)

Debugging and troubleshooting

Team collaboration

Education

Bachelor's degree in Electrical or Communications Engineering

Tools

UE simulators

Core network emulators

Channel emulators

Signal generators/analyzers

Protocol analyzers

QXDM

Job description

Amazon is seeking a hands-on Test Engineer to join the CommSys team within AMZ Leo RF/Modem Dev, responsible for validating 3GPP- and O-RAN-compliant network elements across lab and integration environments.

The ideal candidate is comfortable working at the intersection of RF hardware, software, and automation — executing test campaigns, debugging complex system issues, and collaborating closely with integration, development, and automation teams to ensure product quality and standards