TL;DR

Sr. Wireless Firmware Engineer (Direct To Cell): Develop novel wireless signal processing algorithms and optimized software for satellite-based 4G/5G systems with an accent on physical layer (PHY) and MAC layer protocol stack implementation. Focus on designing, debugging, and optimizing high-performance wireless firmware for resource-constrained CPUs in a complex satellite communication environment.

Location: Onsite in Redmond, WA, United States

Salary: $160,000 - $220,000 per year

Company

%hirify_global% is a leading aerospace manufacturer and space transport services company focused on enabling human life on Mars through advanced space technologies.

What you will do

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

Requirements

Must be a U.S. citizen, lawful permanent resident, refugee, or asylee due to ITAR regulations.
Bachelor's, Master’s or PhD in computer science, computer engineering, electrical engineering or STEM discipline.
5+ years experience in wireless signal processing, modem systems design, wireless systems engineering, DSP, or physical layer processing.
5+ years of C/C++ coding experience.
Willingness to work extended hours and weekends as needed.
Excellent verbal and written communication skills.

Nice to have

Familiarity with 3GPP 4G/5G physical layer design or other broadband OFDM waveforms.
Experience with forward error correction coding concepts and MAC layer basics.
Experience with Linux command line, git, python, and software defined radio (SDR).
Experience supporting products through full release cycle including commercial deployment.
Strong debugging and performance optimization skills.

Culture & Benefits

Comprehensive medical, vision, and dental coverage.
401(k) retirement plan and various insurance benefits.
Paid parental leave, vacation, and holidays.
Company shuttles for commute from select Seattle locations to Redmond office.
Access to stock options, long-term incentives, and employee stock purchase plan.