Phased Array & RAN Validation Engineer, LEO Antenna Test Infrastructure

Amazon Inc

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Quick summary

Work type: On-site
Location: Redmond, WA
Salary: $159,200–$215,300 / yr
Posted: 42 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 $187k

This role $187k

$136k most similar roles pay here $224k

This role pays more than 62% of similar roles. Most pay $160,000–$213,375 — the shaded band above. At the midpoint, this role pays about $187k versus about $187k 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 535 open roles on FindRole.

Listed pay typically runs $143,700–$194,400 across 533 roles with salary data.

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

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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. This role involves validating the 4G/5G RAN protocol stack across all O-RAN layers, including O-RU, O-DU, and O-CU, while integrating phased array antenna beam pattern characterization with gNB protocol testing. The engineer will design test campaigns to verify RF performance, protocol conformance, and data plane integrity in satellite environments, bridging the gap between traditional telecom methodologies and aerospace verification processes like DVT and ATP. Key responsibilities include performing 3GPP 38-141 conformance testing, analyzing PHY, MAC, RLC, PDCP, and RRC layers, and operating signaling testers such as R&S CMX500 and Keysight UXM. Required skills include Python for automation, Linux, Git, Wireshark, and experience with O-RAN architecture and 3GPP NTN standards.

Skills

O-RAN 5G NR 3GPP Python Linux Git Wireshark QXDM XCAL XCAP R&S CMX500 Keysight UXM Anritsu MT8000A VNA TDR VSA DVT QTP ATP

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-level testing to verify beam management.
Perform Tx/Rx conformance testing per 3GPP standards adapted for non-terrestrial network (NTN) waveforms and Doppler pre-compensation.
Develop end-to-end system validation procedures covering the full signal chain from user equipment attach to data transfer.
Adapt RAN validation campaigns to aerospace-specific DVT, QTP, and ATP frameworks with full requirements traceability.
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 gNB performance metrics.

What we're looking for

Must be a U.S. citizen, national, permanent resident, or lawfully admitted into the U.S. as a refugee or granted asylum.
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 and interfaces (O-CU, O-DU, O-RU).
Experience with eNB/gNB or modem validation including developing and managing LTE/5G-NR test cases.
Experience with 3GPP 5G NR protocol stack debugging at the PHY, MAC, and RRC layers.
Proficiency in RF theory, microwave circuit fundamentals, and operation of tools like VNA, TDR, VSA, and signaling testers.
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