SpaceX

Wireless Firmware Engineer (Direct To Cell)

Job Description

Posted on: 
2025-09-06

Responsibilities

  • Design and implement physical layer (PHY) algorithms for satellite-based 4G/5G systems.
  • Develop optimized signal processing algorithms for resource-constrained CPUs.
  • Create models and simulations to analyze and validate system performance.
  • Design, implement, test, maintain, and document the wireless PHY and MAC layers.
  • Identify and debug 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.

Job Requirements

  • Master’s or PhD in computer science, computer engineering, electrical engineering, or a related STEM discipline.
  • 1+ years of experience in wireless signal processing, wireless communications, or modem systems design.
  • 1+ years of C/C++ or Matlab coding experience.
  • Familiarity with 3GPP 4G/5G physical layer design.
  • Strong skills in debugging and performance optimization.
  • Excellent verbal and written communication skills.
  • Ability to work effectively in a dynamic environment with changing needs.
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