Full Stack Software Engineer
CX2
Software Engineering
El Segundo, CA, USA
Posted on Aug 20, 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 are seeking a Full Stack Engineer with strong interest in distributed systems, edge computing, and offline-first architectures. 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.
Key Responsibilities
- Build full stack applications designed to operate in distributed and edge environments.
- Develop offline-first architectures that function reliably in disconnected or partially connected environments.
- Optimize applications for environments with limited computing resources.
- Build new and integrate with existing front-end features (primarily using React.js)
- 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.
Required Qualifications
- Bachelor’s degree in Computer Science, Engineering, or equivalent practical experience.
- A minimum of 4 years of experience developing complex back-end architectures.
- Proficiency in modern frontend frameworks (React strongly preferred).
- Minimum 1 year experience with Python.
- Proficiency with Relational Database Management Systems such as PostgreSQL and MySQL.
- Proficiency with API integration & development.
- Proficiency with building deeply technical features from inception through delivery.
- Proven track record of success with taking ownership and problem solving.
- Clear, structured communicator with a bias for operational excellence and a high standard of precision.
- Comfortable working in a fast-paced, startup environment where process is evolving and speed matters.
ITAR Regulations
- To conform to U.S. Government export regulations, applicant must be a US Citizen, Green Card holder, 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.
- Experience with GraphQL.
- Start-up experience strongly preferred.
- Experience in “hard tech” domains: AI/ML, robotics, hardware, or defense.
- Active Secret/Top Secret Security Clearance.
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.
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