Amazon
Cellular Systems Engineering Lead, Direct-to-Device, Amazon Leo
$151K–$205K
Austin, TX · Full-time · Posted Oct 16, 2026
- Experience
- 8+ years of professional experience in cellular systems, including at least 3 years in the D2D ecosystem, NTN, or direct satellite-to-cellular connectivity.
- Education
- Bachelor's degree in a related field.
- Visa sponsorship
- Candidates must be a U.S. citizen or national, U.S. permanent resident (current Green Card holder), or lawfully admitted into the U.S. as a refugee or granted asylum.
About the job
Leads the cellular system design and integration for Amazon Leo’s direct-to-device service across RAN, 5G core, and commercial devices, excluding the satellite itself.
What you'll do
- Own end-to-end requirements, interfaces, and behavior across RAN, core, and devices; define and review system requirements.
- Lead integration, interoperability, performance analysis, and cross-vendor troubleshooting from protocol analysis through root cause and fix.
- Track 3GPP NTN standards and advise on their impact across system design and roadmaps.
What they ask for
- Bachelor's degree in a related field.
- Deep experience with 4G or 5G RAN systems, protocols, and procedures (L1 to L3); working knowledge of 5G core architecture and interfaces and 3GPP NTN standards.
- Experience with commercial devices or chipsets, device logs and analytics tools, and resolving end-to-end issues with RAN, core, and device vendors.
- Must meet the stated export-control eligibility: U.S. citizen or national, U.S. permanent resident, or lawfully admitted into the U.S. as a refugee or granted asylum.
Nice to have
- Experience with satellite-based RAN architectures for NTN.
- Experience with VoNR/IMS, messaging, emergency services, or device interoperability testing and certification.
Pay
151,200.00 - 204,600.00 USD annually (base salary)
Tools
4G, 5G, RAN, 5G core, 3GPP NTN, VoNR/IMS
Model-written summary · the original posting is authoritative