Senior Communication Systems Engineer in Redmond

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.

Be part of the team defining the overall communication system and architecture of 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 Leo and analyses its overall system level performance such as for overall throughput, latency, system availability, packet loss etc.

This role will be responsible for leading the effort in integration, verification and testing of the systems especially focused on MAC and higher layer testing. This role will also be responsible for developing and testing advanced L1/L2/L3 concepts to improve the performance and reliability of the LEO network. Additionally, this role will be part of a team and develop simulation tools with particular emphasis on modelling the physical layer aspects such as advanced receiver modelling and abstraction, interference cancellation techniques, FEC abstraction models etc.

In This Role You Will:

• Work within a project team and take responsibility for Leo’s communication system design, system integration and verification.
• Work as part of the team in building a suite of system and network simulation services in Matlab / C++ / Python.
• Develop requirements from system level to HW/SW level and define test cases associated with the requirements.
• Identify additional HW and SW that are needed for the purposes of verification and guide the HW/SW development team in the development of these test solutions/tools.
• Work closely with implementation teams to simulate expected system level performance and provide quick feedback on potential improvements.
• Write scripts / code for functions / features required for specific simulation, testing and verification of given RF system.

Basic Qualifications:

• Master's degree in Computer Science, Computer Engineering, or Electrical Engineering, or experience working in electrical engineering field.
• 7+ years of experience in wireless systems design and/or RF design implementation.
• Experience in wireless system design and architecture, system integration, RF system analysis.
• 7+ years of experience developing code in Matlab, C, C++, or Python, and experience with industry standard coding and regression practices.

Preferred Qualifications:

• Experience with information theory and network coding.
• Experience with mobile mesh networks.
• Experience in modelling and performance analysis of LEO Satellite Networks.
• Experience with simulation of RF standards like (4G/5G), 802.11, DVB-S2 / DVB-C, or similar broadband wireless standards.
• Wireless Communications System design and development with emphasis on L1 and L2.
• System level and link level simulation of wireless networks.
• Capacity, performance and interference analysis of wireless networks.
• Development of advanced physical layer and MAC layer techniques for wireless networks.
• Design and understanding of advanced information theory and network coding concepts.
• Design and development of physical layer and some MAC layer techniques for high spectral efficiency.
• Excellent analytical, problem solving, and communication skills.

Amazon is an equal opportunity employer and does not discriminate on the basis of protected veteran status, disability, or other legally protected status.