Amazon
Phased Array & RAN Validation Engineer, LEO Antenna Test Infrastructure
$159K–$215K
Redmond, WA · Full-time · Posted Aug 19, 2026
- Experience
- 5+ years in RAN validation, wireless system testing, or 5G/LTE protocol testing; 3+ years with O-RAN components and interfaces.
- Education
- Bachelor’s degree in Electrical Engineering, Telecommunications, Computer Engineering, or related field.
- Visa sponsorship
- Candidates must be a U.S. citizen or national, U.S. permanent resident (current Green Card holder), or lawfully admitted into the U.S. as a refugee or granted asylum.
About the job
Own end-to-end validation of Amazon Leo’s satellite-based 4G/5G gNB across O-RAN layers, integrating protocol testing with phased-array antenna characterization and aerospace verification processes.
What you'll do
- Validate RAN protocol functionality, performance, interoperability, and regression across O-RU, O-DU, and O-CU; debug issues using UE and gNB logs.
- Integrate OTA beam-pattern measurements with RAN KPIs and perform Tx/Rx conformance and end-to-end system testing for NTN scenarios.
- Develop automated test frameworks, validation procedures, performance-analysis tools, and RAN lab infrastructure; adapt campaigns to DVT, QTP, and ATP frameworks.
What they ask for
- Bachelor’s degree in Electrical Engineering, Telecommunications, Computer Engineering, or a related field.
- 5+ years of experience in RAN validation, wireless system testing, or 5G/LTE protocol testing.
- 3+ years of experience with O-RAN components and interfaces; hands-on 3GPP 5G NR debugging at PHY, MAC, and RRC layers.
- Experience with RF instrumentation, Python test automation and data analysis, Linux, Git, UE log-analysis tools, and protocol analyzers.
Nice to have
- MS or PhD in Electrical Engineering, Wireless Communications, or Telecommunications.
- Experience with phased-array antenna testing, 5G NTN, O-RAN conformance, or aerospace verification processes.
Pay
159,200.00 - 215,300.00 USD annually (base salary)
Tools
3GPP 38-141, R&S CMX500, Keysight UXM, Python, Linux, Git, QXDM, Wireshark
Model-written summary · the original posting is authoritative