Sr. Communication Systems Research Scientist – Radio Resource Management
Core
Research and system design of radio resource management (RRM) and radio access layers for Amazon Leo's direct-to-device satellite network, delivering 3GPP-compliant service to unmodified commercial handsets.
Role type
Senior IC research scientist (wireless communications)
Builds
3GPP Non-Terrestrial Network (NTN) direct-to-device wireless system
Domain
Satellite communications, 3GPP standards, wireless resource management
Deliverable
production ML models
Required skills
Radio resource management (RRM), 3GPP system design, link-level/system-level simulation, agentic AI, multi-user MIMO, mobility management, MAC scheduling, link adaptation, power control, HARQ, Doppler pre-compensation
Preferred skills
PhD in wireless communications, algorithm development, optimization techniques, queueing theory, machine learning, 3GPP standardization experience, direct-to-device system expertise, modem L1/L2 algorithms
Technologies
Matlab, Python, C++, 3GPP (LTE, 5G NR, NTN), MU-MIMO, 5GC/EPC
Responsibilities
Research and specify RRM algorithms for MAC scheduling, link adaptation, and power control; optimize beam management with joint resource allocation; define RRM frameworks for NTN conditions including large delays and Doppler; design mobility and service continuity for moving base stations; develop link-level and system-level simulators using agentic AI; translate research into system requirements and collaborate with modem, payload, and ground teams; represent Amazon Leo in 3GPP standards development.
Seniority
Senior, hands-on IC
