Sr. Comm Systems Engineer, Wireless Systems

About the role

This role is responsible for the design, development and integration of communication payload and customer terminal systems for Project Leo, an initiative to launch a constellation of Low Earth Orbit satellites for broadband connectivity.

Responsibilities

• Define the overall communication system and architecture of Amazon Leo’s broadband wireless network
• Develop and design the communication system
• Analyze overall system level performance such as throughput, latency, system availability, packet loss
• Lead the effort in designing and developing advanced technology and solutions for communication system
• Develop advanced physical layer + protocol stacks systems as proof of concept and reference implementation to improve the performance and reliability of the LEO network
• Develop simulation tools with particular emphasis on modeling the physical layer aspects such as advanced receiver modeling and abstraction, interference cancellation techniques, FEC abstraction models etc.
• Integrate and verify various HW and SW sub-systems as part of system integration and link bring-up and verification

Qualifications

• PhD or Master's degree and 5+ years of quantitative field research experience
• 5+ years professional experience working in wireless communications at the system or implementation level
• Deep understanding of multiple access systems such as OFDMA, TDMA, CDMA, etc.
• Experience in test automation setup and scripting languages such as Python/Perl/Matlab
• Experience with software defined radios and embedded programming in C/C++ and VHDL/Verilog
• Deep understanding on 3GPP L1 physical layer and high layer protocols such as RLC, RRC, MAC
• Ability to work in a small team and drive to go beyond expectations to deliver results
• Broad spectrum of knowledge to understand end-to-end network system architecture from wireless physical layer all the way up to application end-point
• Implementation experience with wireless synchronization and parameter sensing techniques such as ranging/positioning based on signaling as well as low-power design expertise
• Wireless communication systems or digital signal processing background, a passion for building real-world carrier-grade communication systems, and industry experience developing PHY/MAC layer software targeting embedded multicore processors in C/C++
• Experience with Lab test equipment such as channel emulator, spectrum analyzers and Signal and network traffic generators
• Experience with leading technical initiatives and key deliverables