Wireless Firmware Engineer (Starlink Mobile)
SpaceX · Redmond, WA · 2 wk ago
On-siteInformation Technology$125k–$145k/yrFull-time
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.
BASIC QUALIFICATIONS
- Bachelor's degree in computer science, computer engineering, electrical engineering or a STEM discipline.
- 1+ Years of experience with at least 1 of the following; wireless signal processing, wireless communications, modem systems design, wireless systems engineering, DSP (digital signal processing), or physical layer processing (L1).
- 1+ Years of C/C++ coding experience.
PREFERRED SKILLS AND EXPERIENCE
- Familiarity with 3GPP 4G/5G (LTE/NR) physical layer design or other modern broadband OFDM waveforms such as WiMAX, 802.11 WiFi, DVB-S2, DVB-C, 5G NTN (non-terrestrial networks).
- Familiarity with forward error correction (FEC) coding concepts.
- Basic familiarity with MAC layer (medium access control, L2).
- Development and optimization of complex signal processing algorithms in both fixed and floating point.
- Familiarity with Linux command line use, git-based version control, and python programming.
- SDR (software defined radio) experience.
- Experience supporting products through the full release cycle including commercial deployment.
- Strong skills in debugging and performance optimization; exceptional analytical skills and engineering fundamentals.
- Excellent verbal and written communication skills.
- Ability to work effectively in a dynamic environment with changing needs and requirements.