Sr. DSP Modem Embedded Engineer, Amazon Leo

About the role

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.

Key Responsibilities

• Develop embedded software in assembly, C, and C++ in a real-time operating system environment for broadband satellite modem systems.
• Write real-time critical software to augment and interact with hardware blocks such as FFT, correlator, codec, DPD, etc.
• Write device drivers and system applications for satellite broadband link management.
• Work closely with modem and hardware teams to lead emulation, board bring-up, integration, and testing

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.

About the team

Alexa Voice Service is building a constellation of Low Earth Orbit (LEO) satellites to deliver low-latency, high-speed broadband connectivity to unserved and underserved communities worldwide. Our PHY Software team owns the Layer 1 stack that powers every link in the satellite network — from customer terminals to gateways, across multiple chip generations and orbital configurations.

Basic Qualifications

• Master's degree in Computer Science, Computer Engineering, or Electrical Engineering, or experience with ARM and various DSP ISAs
• 7+ Years of DSP Modem experience or equivalent experience.
• 7+ years of non-internship professional software development experience including code development methodologies, debugging, version control, and code maintenance.
• 7+ years of experience with DSP modem development and test.
• 7+ years of experience with wireless communications systems such as 3/4/5G, WIFI, or other OFDM systems.
• 7+ years of experience with functional DSP modem blocks such as FEC, FFTs, filters, synchronization, digital pre-distortion, multiple access, equalization, AGC, ACM, etc.

Preferred Qualifications

• 7+ years experience with RF HW and impairments
• 7+ years with lab debugging tools and methods (emulation, signal tracing, spectrum analyzers, channel simulators, and logic analyzers)
• Familiarity with ASIC design, verification, and bring-up
• Familiarity with modem system simulation in Matlab or C/C++
• PhD in DSP, signal processing, communications systems or similar