DSP Modem Embedded 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 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., 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 Amazon Leo 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.

This is a rare opportunity to work at the intersection of DSP algorithm design, real-time embedded systems, and space-grade hardware - shipping software that runs in orbit.

Bachelor’s degree in Electrical Engineering or a related field

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

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 https://amazon.jobs/en/benefits.

USA, CA, San Diego - 136,000.00 - 184,000.00 USD annually