L3Harris is hiring experienced Systems Security Engineers to work onsite supporting mission-critical defense and government encryption technologies. Candidates must be U.S. citizens with active government security clearances and possess relevant engineering or program management experience. The roles involve developing and integrating high-assurance security solutions in complex military environments across multiple domains including cyber, air, land, and sea.
L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers’ mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do.
L3Harris Technologies is the Trusted Disruptor in the defense industry. With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security.
L3Harris Engineering Career Fair – Herndon, VA
Date : Wednesday, January 28th, 2026
Time : 2:00 pm - 6:00 pm EST
Location : DoubleTree by Hilton McLean Tysons, 1960 Chain Bridge Rd, McLean, VA 22102
L3Harris Surface & C5 Systems - Herndon is a worldwide leader in the engineering, development, manufacture and integration of high assurance encryption systems for defense and governmental applications. The company’s encryption solutions can be found in a wide range of demanding military environments around the world. Join our dynamic team!
Qualified engineering & program management applicants must be US citizens and possess active government issued security clearance. Applicants without an active government issued security clearance will not be eligible for hire.
This is a hiring event for experienced professionals, not aimed at recent college graduates, and all positions will be onsite.
We will be interviewing and hiring for the following positions:
Click 'APPLY NOW' to confirm your attendance.
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L3Harris Technologies is proud to be an Equal Opportunity Employer. L3Harris is committed to treating all employees and applicants for employment with respect and dignity and maintaining a workplace that is free from unlawful discrimination. All applicants will be considered for employment without regard to race, color, religion, age, national origin, ancestry, ethnicity, gender (including pregnancy, childbirth, breastfeeding or other related medical conditions), gender identity, gender expression, sexual orientation, marital status, veteran status, disability, genetic information, citizenship status, characteristic or membership in any other group protected by federal, state or local laws. L3Harris maintains a drug-free workplace and performs pre-employment substance abuse testing and background checks, where permitted by law.
Please be aware many of our positions require the ability to obtain a security clearance. Security clearances may only be granted to U.S. citizens. In addition, applicants who accept a conditional offer of employment may be subject to government security investigation(s) and must meet eligibility requirements for access to classified information.
By submitting your resume for this position, you understand and agree that L3Harris Technologies may share your resume, as well as any other related personal information or documentation you provide, with its subsidiaries and affiliated companies for the purpose of considering you for other available positions.
L3Harris Technologies is an E-Verify Employer. Please click here for the E-Verify Poster in English or Spanish. For information regarding your Right To Work, please click here for English or Spanish.
Systems Security Engineer, Information Security, Cybersecurity, Encryption Systems, Defense Technology, Government Security Clearance, Network Security, Embedded Systems, Mission-critical, Military Technology
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