Sr. Comm Systems Engineer, Wireless Systems

Amazon Leo is an initiative to launch a constellation of Low Earth Orbit satellites that will provide low-latency, high-speed broadband connectivity to unserved and underserved communities around the world. As a Systems Engineer, this role is primarily responsible for the design, development and integration of communication payload and customer terminal systems. The Role:Be part of the team defining the overall communication system and architecture of Amazon Leo’s broadband wireless network. This is a unique opportunity to innovate and define groundbreaking wireless technology at global scale. The team develops and designs the communication system for project Leo and analyzes its overall system level performance such as for overall throughput, latency, system availability, packet loss etc.This role in particular will be responsible for leading the effort in designing and developing advanced technology and solutions for communication system. This role will also be responsible developing advanced physical layer + protocol stacks systems as proof of concept and reference implementation to improve the performance and reliability of the LEO network. In particular this role will be responsible for using concepts from digital signal processing, information theory, wireless communications to develop novel solutions for achieving ultra-high performance LEO network. This role will also be part of a team and 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. This role will also play a critical role in the integration and verification of various HW and SW sub-systems as a part of system integration and link bring-up and verification. Export Control Requirement:Due to applicable export control laws and regulations, candidates must be a U.S. citizen or national, U.S. permanent resident (i.e., current Green Card holder), or lawfully admitted into the U.S. as a refugee or granted asylum.Basic 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.Preferred qualification - PhD with emphasis in broadband wireless or wireline communication systems- 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 is a plus.- Deep understanding on 3GPP L1 physical layer and high layer protocols such as RLC, RRC, MAC.- Must have the ability to work in a small team and drive to go beyond expectations to deliver results- Broad spectrum of knowledge to be able 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- Ideal candidate has a 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.Amazon is an equal opportunity employer and does not discriminate on the basis of protected veteran status, disability, or other legally protected status.Our inclusive culture empowers Amazonians to deliver the best results for our customers. If you have a disability and need a workplace accommodation or adjustment during the application and hiring process, including support for the interview or onboarding process, please visit for more information. If the country/region you’re applying in isn’t listed, please contact your Recruiting Partner.The base salary range for this position is listed below. Your Amazon package will include sign-on payments and restricted stock units (RSUs). Final compensation will be determined based on factors including experience, qualifications, and location. Amazon also offers comprehensive benefits including health insurance (medical, dental, vision, prescription, Basic Life & AD&D insurance and option for Supplemental life plans, EAP, Mental Health Support, Medical Advice Line, Flexible Spending Accounts, Adoption and Surrogacy Reimbursement coverage), 401(k) matching, paid time off, and parental leave. Learn more about our benefits at .USA, TX, Austin - 159,200.00 - 215,300.00 USD annually