Full Stack Software Engineer

Cx2
El Segundo, CA

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 are seeking a full-stack software engineer with 3-5+ years experience to join our growing team. In this role you will develop, support, and maintain new core system capabilities that facilitate command and control (C2) of our suite of electronic warfare products. You will work at all levels of the stack, from the customer facing interface all the way to the hardware and infra interfaces.

The ideal candidate will have a strong background in front-end and back-end development for complex web applications, and be able to own large, complex product features from inception to deployment.

Develop and maintain customer-facing applications

  • Work with team members to define requirements and design appropriate technical architectures
  • Select appropriate languages or enabling technologies for the task
  • Implement back-end services, system logic
  • Build and integrate front-end components (primarily using React.js )
  • Optimize to ensure scalability, performance, and reliability.

Collaborate with cross-functional teams

  • Work with designers, product managers, and other team members to translate concepts into functional applications
  • Collaborate with infrastructure, hardware, RF, and other engineers to establish feature architectures that support requirements effectively and in a resource-efficient manner
  • Participate in code reviews and QA

Implement best practices

  • Write clean, maintainable, and well-documented code
  • Conduct unit, integration, and end-to-end testing.

Key Skills and Qualifications

  • Front-end: HTML5, CSS3, JavaScript (ES6+), React.js , npm/yarn, responsive design
  • Python, SQL databases, RESTful APIs, JWT, gRPC
  • Additional: GraphQL, Git (Bitbucket), Docker, ROS2
  • Bachelor’s degree in Computer Science, Engineering, or a related field

ITAR Regulations

  • To conform to U.S. Government export regulations, applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (aka green card holder), (iii) Refugee under 8 U.S.C. § 1157, or (iv) Asylee under 8 U.S.C. § 1158, or be eligible to obtain the required authorizations from the U.S. Department of State. Learn more about the ITAR here .

Bonus Points

  • Experience with TypeScript and/or Python Typing
  • Familiarity with CI/CD pipelines and DevOps practices
  • Knowledge of GraphQL.- Experience with Python
  • Experience in “hard tech” domains: AI/ML, robotics, hardware, or defense

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
  • 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

$135,000 - $164,000 a year

Exact compensation may vary based on skills, experience and location.

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:

Posted 2025-09-22

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