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Sr. Wireless Firmware Engineer (Starlink Mobile)

SpaceX· Starlink Mobile Engineering
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Redmond, WA$160k - $225kfull-timePosted 5mo ago

About the role

Wireless firmware engineer role within SpaceX Starlink Mobile program focused on developing PHY/MAC software and signal processing algorithms for satellite-based 4G/5G systems, with emphasis on high-performance, resource-constrained environments and collaboration across wireless systems and protocol firmware teams.

Responsibilities

  • Design and implement physical layer (PHY) algorithms for satellite-based 4G/5G (LTE/NR) eNodeB/gNodeB
  • Develop optimized signal processing algorithms running on resource-constrained CPUs
  • Develop models and run simulations to analyze and validate overall system performance, including modem performance
  • Design, implement, test, maintain, and document the wireless PHY and MAC layers of the protocol stack
  • Identify and debug complex performance issues across the wireless PHY and MAC layers
  • Participate in architecture, design, and code reviews. Contribute to system dimensioning and algorithm design for next generation hardware

Qualifications

  • Bachelor's, Master’s or PhD degree in computer science, computer engineering, electrical engineering or a STEM discipline
  • 5+ Years of experience with at least 1 of: wireless signal processing, modem systems design, wireless systems engineering, DSP, or physical layer processing (L1)
  • 5+ Years of C/C++ coding experience

Skills

Required:Physical layer (PHY) design and optimizationC/C++ programmingSignal processing
Nice to have:Linux, git, PythonRF/modem systems knowledge

Benefits

  • comprehensive medical, vision, and dental coverage
  • 401(k) retirement plan
  • short and long-term disability insurance
  • life insurance
  • paid parental leave
  • paid vacation and holidays
  • employee stock incentives and purchase plans
  • discounts and perks
  • company shuttles between Seattle area and SpaceX Redmond office
Last updated Jul 8, 2026. Interested? Apply on the company site.

About SpaceX

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