Senior RF Systems Integration and Test Engineer, RF and 3GPP NTN, Amazon Leo

Amazon Leo is building a Low Earth Orbit satellite constellation to deliver high speed low latency broadband connectivity to unserved and underserved communities around the world. As part of Payload Integration and Test this role is focused on hands on integration validation troubleshooting and qualification of end to end satellite communications systems across space ground RF modem RAN Core transport and cloud infrastructure. The work is lab centered and system focused. The role is not a software development position but the ability to use Linux Python protocol traces packet captures and automation to debug complex systems is highly valuable.

Export Control Requirement
Due to applicable export control laws and regulations candidates must be a U.S. citizen or national U.S. permanent resident that is a current Green Card holder or lawfully admitted into the U.S. as a refugee or granted asylum.


Key job responsibilities
This role owns the bridge between RF validation and 3GPP system behavior. The candidate should be able to execute chamber OTA modem RF and payload tests while also understanding how RF impairments impact registration synchronization bearer setup mobility VoNR IMS throughput and end to end system readiness.

Key Job Responsibilities
Integrate RF payload hardware modems antennas Open RAN components 5G Core IMS and lab infrastructure into end to end validation environments.
Execute RF OTA chamber HIL modem and system level tests for NTN and satellite terrestrial network validation.
Validate 3GPP Release 17 NTN behavior from an RF systems perspective including synchronization timing mobility Doppler link quality beam behavior and service continuity.
Correlate RF impairments with protocol and service behavior including attach registration PDU session setup handover VoNR IMS registration throughput latency and packet loss.
Support Open RAN integration across CU DU RU gNodeB RF front end payload hardware and 5G Core interfaces.
Use spectrum analyzers vector signal analyzers signal generators channel emulators RF chambers OTA setups and protocol traces to isolate failures.
Drive root cause on cross domain issues spanning RF hardware antenna behavior modem software RAN configuration Core behavior timing and lab infrastructure.
Develop integration test procedures readiness gates regression coverage and defect reports for RF plus 3GPP system validation.
Collaborate with RF antenna modem payload RAN Core network software and operations teams to qualify production bound satellite communications capabilities.


- Bachelors degree in Electrical or Communications Engineering or a related field
- 7 years of experience in RF systems integration wireless validation modem validation OTA testing or cellular lab test experience.
- Strong understanding of RF communications fundamentals including link budgets SNR EVM ACLR gain noise figure linearity synchronization fading interference and antenna behavior.
- Knowledge of 3GPP Release 17 NTN concepts and ability to connect standards behavior to RF and system level validation.
- Experience integrating or testing Open RAN gNodeB CU DU RU modem RF front end or 5G Core systems.
- Experience with VoNR and IMS is desirable especially the ability to understand how RF and mobility behavior impacts service continuity.
- Experience with RF lab equipment such as spectrum analyzers signal generators vector signal analyzers power meters channel emulators chambers or OTA systems.
- Ability to analyze logs packet captures RF measurements modem traces and system telemetry to debug end to end failures.
- Linux proficiency and comfort working directly in a lab environment with hardware test equipment and automated test systems.

- Experience with LEO satellite payloads NTN space to ground links phased arrays beamforming or satellite communications systems.
- Experience with Release 18 NTN advanced mobility beam management or satellite specific 5G extensions.
- Experience with RF chamber testing OTA validation channel modeling Doppler emulation timing validation or link performance testing.
- Experience with Keysight Rohde and Schwarz Anritsu LitePoint Spirent Viavi or similar RF and wireless test platforms.
- Experience with Open RAN MOCN MORAN Multi PLMN IMS VoNR and carrier interoperability testing.
- Python scripting experience for instrument control test automation data analysis log parsing or automated report generation.
- Ability to clearly explain whether a failure is driven by RF conditions modem behavior RAN configuration Core behavior lab setup or standards interpretation.
- Experience producing concise readiness reports defect evidence packages and cross functional debug summaries.

Amazon is an equal opportunity employer and does not discriminate on the basis of protected veteran status disability or other legally protected status.

Our inclusive culture empowers Amazonians to deliver the best results for our customers. If you have a disability and need a workplace accommodation or adjustment during the application and hiring process including support for the interview or onboarding process please visit for more information. If the country/region youre applying in isnt listed please contact your Recruiting Partner.

The base salary range for this position is listed below. Your Amazon package will include sign-on payments and restricted stock units (RSUs). Final compensation will be determined based on factors including experience qualifications and location. Amazon also offers comprehensive benefits including health insurance (medical dental vision prescription Basic Life & AD&D insurance and option for Supplemental life plans EAP Mental Health Support Medical Advice Line Flexible Spending Accounts Adoption and Surrogacy Reimbursement coverage) 401(k) matching paid time off and parental leave. Learn more about our benefits at TX Austin - 137300.00 - 185700.00 USD annually
USA WA Redmond - 137300.00 - 185700.00 USD annually