Senior Phased Array & RAN Validation Engineer, LEO Antenna Test Infrastructure

Amazon Inc

Confirmed live yesterday High trust

Quick summary

Work type: On-site
Location: San Diego, CA
Salary: $159,200–$215,300 / yr
Posted: 14 days ago
Freshness: Confirmed live yesterday
Nearby: 99+ roles within 25 mi

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Competitive pay

How this pay compares to similar roles

Similar $175k

This role $187k

$138k most similar roles pay here $224k

This role pays more than 65% of similar roles. Most pay $152,000–$197,750 — the shaded band above. At the midpoint, this role pays about $187k versus about $175k for comparable roles.

Based on 240 similar postings.

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About Amazon Inc

Amazon Inc. is the world''s largest e-commerce and cloud computing company, operating the Amazon marketplace, AWS cloud platform, Prime subscription services, Alexa voice AI, and logistics infrastructure. Industry: E-Commerce & Cloud Computing

Amazon Inc currently has 560 open roles on FindRole.

Listed pay typically runs $143,700–$194,400 across 558 roles with salary data.

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At a glance

TL;DR · Senior Phased Array & RAN Validation Engineer, LEO Antenna Test Infrastructure

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Sr. Phased Array & RAN Validation Engineer, LEO Antenna Test Infrastructure joins the Antenna Test Infrastructure team to perform end-to-end validation of satellite-based gNB systems. The role involves validating 4G/5G RAN protocol stacks across O-RU, O-DU, and O-CU layers while integrating phased array antenna beam pattern characterization for orbital conditions. Key responsibilities include performing Tx/Rx conformance testing per 3GPP standards, developing automated test frameworks, and analyzing UE and gNB logs to debug issues at the PHY, MAC, RLC, PDCP, and RRC layers. The position requires expertise in O-RAN architecture, RF theory, and microwave circuit fundamentals. Candidates will utilize tools such as R&S CMX500, Keysight UXM, Python, Linux, and Wireshark to ensure data plane integrity and beam management. This role bridges the gap between traditional telecom RAN testing and aerospace verification processes for satellite-to-mobile networks.

Skills

O-RAN 5G NR LTE 3GPP Python Linux Git Wireshark R&S CMX500 Keysight UXM VNA TDR VSA QXDM XCAL XCAP Phased Array Antenna NTN

What you'll do

Validate the 4G/5G RAN protocol stack across all O-RAN layers including functional, performance, and interoperability testing.
Integrate phased array antenna beam pattern characterization with gNB protocol testing to verify beam management in orbital conditions.
Perform Tx/Rx conformance testing per 3GPP standards adapted for non-terrestrial network (NTN) waveforms and timing.
Develop end-to-end system validation procedures covering the full signal chain from user equipment attach to data transfer.
Analyze UE and gNB logs to root-cause issues at PHY, MAC, RLC, PDCP, and RRC layers.
Validate O-RAN fronthaul interface conformance including C/U/S/M-plane functionality.
Build automated test frameworks and maintain RAN lab infrastructure to optimize performance metrics like throughput and latency.
Design and execute test campaigns that bridge the gap between telecom standards and aerospace verification processes.

What we're looking for

Must be a U.S. citizen, national, permanent resident, or granted asylum/refugee status for export control compliance.
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 architecture components (O-CU, O-DU, O-RU) and interfaces.
Experience with 3GPP 5G NR protocol stack including debugging at the PHY, MAC, and RRC layers.
Proficiency in Python for test automation, Linux environments, Git, and tools like Wireshark or QXDM.
Experience operating RF instrumentation such as R&S CMX500, Keysight UXM, or Anritsu MT8000A.
Experience with RF theory, microwave circuit fundamentals, and antenna beam pattern characterization (preferred).