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RF Software Engineer
CX2
Software Engineering
El Segundo, CA, USA
Posted on Oct 29, 2025
CX2 is a next-generation defense technology company founded to deliver spectrum dominance for the United States and our allies. CX2’s AI-enabled hardware and software platforms detect, disrupt and defend the electromagnetic spectrum across land, air, sea and space domains.
We're seeking a highly skilled RF Software Engineer to join our growing team. The ideal candidate will have extensive experience writing signal classification algorithms in GNU radio with COTS hardware, developing and implementing signal processing algorithms for electronic warfare applications, and designing and optimizing antenna systems for electronic warfare platforms.
Key Responsibilities
- Design, develop, and test electronic warfare systems including jammers, signal processors, and signal identification tools
- Conduct modeling and simulation for radio system performance and key functions such as triangulation
- Develop and implement signal processing algorithms for electronic warfare applications
- Write signal classification algorithms in GNU radio with COTS hardware
- Design and optimize antenna systems for electronic warfare platforms
- Utilize frequency hopping and other counter-jamming techniques to enhance system robustness
- Perform modeling, system analysis and troubleshooting to ensure optimal performance of electronic warfare systems
- Work alongside, and mentor, a talented team of hardware and software engineers and help generalists understand the fundamentals of EW
- Stay up-to-date with the latest advancements in electronic warfare technology and implement best practices
Qualifications
- Experience with direction finding, geolocation and signal sorting/deinterleaving algorithms and software
- Experience with GNU Radios and writing signal classification
- Performance modeling using modeling & simulation tools such as Matlab, Suppressor, Brawler or other tools
- Signal trackers, Kalman filters, multi-int data fusion engines and trackers
- Experience with data and performance analysis for radar warning receivers, electronic support systems, SIGINT & COMINT systems and jammers
- Test and Evaluation experience of RF systems
- Modeling & Simulation including experience with Hardware in the loop testing including CEESIM (combat EM environment simulator) or similar experience
- Mission planning and mission data file generation
- Strong skills with C++ and Python
- Bachelor’s or Master’s degree in Software Engineering, Electrical Engineering, Computer Engineering, or a related field
- To Conform to US Government Regulations, applicant must be a U.S. Citizen or National or U.S. lawful, permanent resident (aka green card holder), or be eligible to obtain the required authorizations from the U.S. Department of State. Note: Those currently on OPTs and/or H1Bs do not currently qualify for ITAR. Learn more about the ITAR here.
ITAR Regulations
Bonus points
- Installed performance analysis of RF systems in real test bodies or aircraft
- Real time embedded software integration in C, C#, VHDL or Haskel
Additional Requirements
- Ability to work extended hours and/or weekends as needed for mission critical deadlines.
What We Offer
- Competitive salary, stock options and benefits, including health, vision and dental.
- 401K enrollment at 90 days.
- Generous PTO + most Federal Holidays observed
- Professional growth and development opportunities.
- Collaborative and inclusive work environment.
- Access to the latest tools and technologies.
- High levels of responsibility and autonomy.
- Professional growth and development opportunities.
- Access to the hardest problems in electronic warfare.
CX2 is a next-generation defense technology company securing spectrum dominance for the United States and its allies. We build AI-enabled hardware and software platforms to detect, disrupt, and defend the electromagnetic spectrum across land, air, sea, and space. Our systems are deployed in the most contested operational environments in the world. We’re backed by leading venture investors in the defense ecosystem and led by founders with track records at Meta, SpaceX, Epirus, and the U.S. Department of Defense.
Equal Opportunity Employer
CX2 is committed to equal employment opportunity. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, gender identity, sexual orientation, national origin, disability, veteran status, or any other protected characteristic under federal, state, or local law, including those with a criminal history, in compliance with the CA Fair Chance Initiative for Hiring Ordinance.
To view CX2's privacy policy, please visit: https://www.cx2.com/privacy
Exact compensation may vary based on skills, experience and location.