Lead Cellular Systems Engineer: D2D & NTN, RAN to Device

Amazon Inc.; Austin (TX); On-site; USD 151,000 - 205,000; Full time

Benefits offered by this job

Health insurance

RSUs

Signing bonus

Job summary

Amazon is seeking an experienced Cellular Systems Engineering Lead for Direct-to-Device (D2D) services within the Leo program. You will own the end-to-end cellular system view across RAN, 5G core, and devices, coordinating with RAN, core, chipset, and device vendors to resolve cross-boundary issues.

The role requires deep D2D/NTN expertise, hands-on device experience, and the ability to lead in a fast-moving, international environment.

Qualifications

• Bachelor's degree or higher in a related field.
• 8+ years in cellular systems incl. 3+ years in D2D/NTN/ satellite-to-cellular.

Responsibilities

• Own the cellular system view of the D2D service across RAN, 5G core, and devices, including requirements, interfaces, and end-to-end behavior.
• Define and review RAN system requirements for NTN operation, including scheduling, HARQ, timing advance, mobility, and access control.
• Define and review 5G core requirements and interfaces, and their interaction with the RAN.
• Own device-side system requirements and behavior, including NTN feature support, UE requirements, and device-side connection management.
• Work with RAN, core, chipset, and device vendors to resolve end-to-end issues from protocol to fix.
• Support end-to-end integration tests across RAN, core, and devices in lab and OTA environments.
• Analyze end-to-end call flows and performance and translate findings into requirements and design recommendations.
• Track 3GPP NTN standards evolution and their impact on RAN/core/device roadmaps.
• Act as SME for RAN/core/device systems, collaborating with Architecture, Systems Eng, and Telco Service Development.
• Coordinate across distributed international teams and partners.

Skills

RAN expertise

5G Core

Device experience

Vendor collaboration

End-to-end systems

Performance analysis

Education

Bachelor's degree in a related field

Tools

Log analytics tools

Test equipment

Job description

Amazon is seeking an experienced Cellular Systems Engineering Lead for Direct-to-Device (D2D) services within the Leo program. You will own the end-to-end cellular system view across RAN, 5G core, and devices, coordinating with RAN, core, chipset, and device vendors to resolve cross-boundary issues.

The role requires deep D2D/NTN expertise, hands-on device experience, and the ability to lead in a fast-moving, international environment.