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. As a Sr. DSP Modem Embedded Software Design Engineer, you will own critical components of the physical layer software that drives our custom satellite modem ASIC. You'll work across the full development lifecycle — from architecture and requirements through implementation, silicon bring-up, integration, and on-orbit operations. You will operate at the boundary between hardware and software, writing performance-critical code that directly interfaces with custom DSP accelerators and manages real-time link-layer behavior for a broadband LEO constellation.

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.

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.

Pay

USA, CA, San Diego - 159,200.00 - 215,300.00 USD annually
USA, WA, Redmond - 159,200.00 - 215,300.00 USD annually

Benefits

Amazon 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.

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