NTN 5G Systems Integration & Test Engineer

Amazon; Austin (TX); On-site; USD 136,000 - 184,000; Full time

Benefits offered by this job

Sign-on payments and RSUs

Health insurance

401(k) matching

Paid time off

Parental leave

Job summary

Amazon Kuiper Manufacturing Enterprises LLC is seeking an experienced Payload Integration and Test engineer to own 3GPP interpretation and protocol validation for NTN features. You will translate standards into lab tests and drive tests across RAN, Core, IMS, mobility, and service continuity.

The role requires deep 3GPP knowledge, Linux proficiency, and hands-on lab execution with test equipment. Expect collaboration with cross-functional teams in a lab-centric environment.

Qualifications

• 5+ years experience on LTE or 5G protocol validation, systems integration, conformance, interoperability, or protocol stack troubleshooting.
• Deep knowledge of 3GPP Release 17, with NTN/satellite related protocol impacts.
• Strong understanding of RRC, NAS, NGAP, F1AP, E1AP, XnAP, PDCP, RLC, MAC, GTP U, SCTP, QoS, mobility, and bearer management.
• Experience with Open RAN architecture, including CU, DU, RU, gNodeB behavior, and disaggregated RAN integration.
• Experience with VoNR and IMS protocols, including registration, SIP signaling, RTP media, call setup, call release, and failure handling.
• Experience analyzing protocol logs and packet captures to determine root cause across RAN, Core, IMS, UE, modem, and network elements.
• Experience designing test plans, regression coverage, conformance validation, and interoperability validation in a lab environment.
• Linux proficiency and ability to work directly with test equipment, logs, scripts, and lab systems.

Responsibilities

• Lead 3GPP protocol validation for Release 17 NTN features across RAN, Core, IMS, mobility, bearer management, and service continuity.
• Define test strategies and pass/fail criteria for RRC, NAS, NGAP, XnAP, F1AP, E1AP, PDCP, RLC, MAC, GTP U, IMS, SIP, RTP, and VoNR procedures.
• Interpret 3GPP specifications and convert requirements into executable integration, regression, conformance, and interoperability test cases.
• Validate Open RAN behavior across CU, DU, RU, gNodeB, 5G Core, and IMS systems in lab, HIL, OTA, and end-to-end environments.
• Drive deep debug of protocol failures including registration, attach, PDU session setup, handover, cell reselection, bearer setup, QoS, IMS registration, and VoNR call setup.
• Analyze protocol logs, packet captures, vendor traces, modem traces, RAN traces, Core traces, and RF correlated failures to identify root cause.
• Partner with architecture, standards, RAN, Core, RF, modem, software, payload, and operations teams to close standards compliance and interoperability gaps.
• Track industry evolution across Release 17, Release 18, NTN, Open RAN, IMS, VoNR, MOCN, MORAN, and Multi PLMN deployments.
• Produce clear test coverage maps, defect narratives, readiness summaries, and risk assessments for leadership and technical stakeholders.

Skills

LTE/5G protocol validation

Lab integration

Linux

Python scripting

Open RAN

3GPP Release 17

3GPP Release 18

protocol analysis

troubleshooting

Education

Associate degree or above

Tools

Packet capture tools

Oscilloscopes

Spectrum analyzers

Lab infrastructure

Job description

Amazon Kuiper Manufacturing Enterprises LLC is seeking an experienced Payload Integration and Test engineer to own 3GPP interpretation and protocol validation for NTN features. You will translate standards into lab tests and drive tests across RAN, Core, IMS, mobility, and service continuity.

The role requires deep 3GPP knowledge, Linux proficiency, and hands-on lab execution with test equipment. Expect collaboration with cross-functional teams in a lab-centric environment.