Test Engineer - Hardware

Company: CX2
Location: El Segundo
Posted on: February 16, 2026

Job Description:

Job Description Job Description 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 hands-on Test Engineer to develop, execute, and support testing for hardware products in a manufacturing environment. This role is responsible for validating product performance, reliability, and compliance through the design of test procedures, fixtures, and automated test systems, supporting both new product introduction (NPI) and high-volume production. This will be based at our HQ location in El Segundo, CA. Key Responsibilities: Develop and execute hardware test plans, procedures, and acceptance criteria Write and debug test automation scripts in Python Design, build, and maintain test fixtures and test equipment Support production testing and troubleshoot test failures on the manufacturing line Analyze test data to identify trends, root causes, and corrective actions Collaborate with design, manufacturing, and quality teams during NPI Validate product performance, reliability, and environmental requirements Ensure test coverage meets regulatory and customer requirements Improve test efficiency, yield, and throughput in manufacturing Document test results, procedures, and engineering changes Support failure analysis and continuous improvement initiatives Required Qualifications Bachelor’s degree in Electrical, Mechanical, Manufacturing Engineering, or related field Experience in hardware testing, manufacturing engineering, or production support Strong understanding of electronic or mechanical systems (depending on product) Experience with test equipment (e.g., oscilloscopes, multimeters, power supplies, environmental chambers) Advanced proficiency in Python Ability to read and interpret schematics, drawings, and specifications Experience troubleshooting hardware issues in a production environment Strong documentation and communication skills Ability to work some nights and weekends to meet mission-critical deadlines Ability to obtain and maintain a security clearance Must be a U.S. Person (see ITAR Regulations below) due to required access to U.S. export-controlled information or facilities Bonus Points Experience designing automated test systems Experience with CAD (SolidWorks or Fusion360) Experience with test fixture design and validation Familiarity with manufacturing processes and quality systems (ISO 9001, IPC, Six Sigma) Experience with regulatory compliance testing Experience supporting high-volume manufacturing or contract manufacturers Hands-on experience with root cause analysis tools (FMEA, etc.) Clearance: Active Secret or ability to obtain and maintain; TS/SCI eligibility preferred. ITAR/EAR-controlled work. Learn more about Security Clearances here. 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. 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. High levels of responsibility and autonomy. Access to the latest tools and technologies as well as the hardest problems in electronic warfare. Exact compensation may vary based on skills and experience. 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

Keywords: CX2, Laguna Niguel , Test Engineer - Hardware, Engineering , El Segundo, California