Sr. Communication Systems Design Engineer, Amazon Leo

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 Ka band and S/C band 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 with few legacy constraints. The team develops and designs the communication system of Amazon 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 L1/L2 proof of concept HW/SW systems to improve the performance and reliability of the Amazon 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 design, integration and verification of various HW and SW sub-systems as a part of system integration and link bring-up and verification.

In this role you will:

• \tDesign advanced L1/L2 algorithms and solutions for the Amazon Leo communication system.

• \tWork with ASIC development teams to build power/area efficient L1/L2 HW accelerators to be integrated into Amazon Leo SoCs.

• \tProvide specifications and work with implementation teams on the development of embedded L1/L2 HW/SW architectures.

• \tWork with multi-disciplinary teams to develop advanced solutions for time, frequency and spatial acquisition/tracking in LEO systems, particularly under large uncertainties.

• \tDevelop link-level and system-level simulators and work closely with implementation teams to evaluate expected performance and provide quick feedback on potential improvements.

• \tDevelop proof-of-concepts for critical communication payload components using SDR platforms consisting of FPGAs and general-purpose processors.

• \tDevelop testbeds consisting of digital, IF and RF components while accounting for link-budgets and RF/IF line-ups. Previous experiences with VSAs/VSGs, channel emulators, antennas (particularly phased-arrays) and anechoic chamber instrumentation are a plus.

• \tWork with development teams on system integration and debugging from PHY to network layer, including interfacing with flight computer and SDN control subsystems.

• \tWilling to work in fast-paced environment and take ownership that goes from algorithm specification, to HW/SW architecture definition, to proof-of-concept development, to testbed bring-up, to integration into the Amazon Leo system.

• \tBe a team player and provide support when requested while being able unblock themselves by reaching out RF, ASIC, SW, Comsys and Testbed supporting teams to move forward in development, testing and integration activities.

• \tAbility to adapt design and test activities based on current HW/SW capabilities delivered by the development teams.

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

• \tMaster's degree in Electrical Engineering, related discipline, or equivalent experience

• \t7+ years professional experience working in wireless communications at the system or implementation level.

• \tDeep understanding of Multiple access systems such as OFDMA, TDMA, CDMA, etc.

• \tIn depth experience of modem L1/L2 algorithms development and architectures.

• \tExperience in the development of link and system level simulators using Matlab/Python/C++.

• \tBroad 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.

• \tExperience in test setup automation using Matlab/Python/Pearl.

• \tExperience with current software development processes and tools including Agile, TDD, BDD, CI, Git.

• \tMust have the ability to work in a small team and drive to go beyond expectations to deliver results.

• \tIdeal 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 HW/SW targeting SoCs, FPGAs, and general-purpose processors.

• \tExperience with leading technical initiatives and key deliverables.

PREFERRED QUALIFICATIONS

• \tPhD with emphasis in broadband wireless or wireline communication systems.

• \tIn depth understanding and use of communication theory and digital signal processing, particularly related to topics such as time-frequency synchronization and channel acquisition in previous experience.

• \tExperience in HW/SW co-design to achieve power/area efficient solutions to be integrated into heterogeneous/distributed computing architectures consisting of SoCs, FPGAs and general-purpose processors.

• \tExperience with software defined radios (SDRs) and embedded programming in C/C++ and VHDL/Verilog is a plus.

• \tExperience with lab test equipment such as channel emulator, spectrum analyzers and signal and network traffic generators.

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 https://amazon.jobs/content/en/how-we-hire/accommodations for more information. If the country/region you're applying in isn't listed, please contact your Recruiting Partner.

Our compensation reflects the cost of labor across several US geographic markets. The base pay for this position ranges from $143,300/year in our lowest geographic market up to $247,600/year in our highest geographic market. Pay is based on a number of factors including market location and may vary depending on job-related knowledge, skills, and experience. Amazon is a total compensation company. Dependent on the position offered, equity, sign-on payments, and other forms of compensation may be provided as part of a total compensation package, in addition to a full range of medical, financial, and/or other benefits. For more information, please visit https://www.aboutamazon.com/workplace/employee-benefits. This position will remain posted until filled. Applicants should apply via our internal or external career site.