Scientist, Systems Engineering

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 is the Trusted Disruptor in defense tech. 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.

• Lead the design, development, and validation of secure system architectures, communications networks, and embedded cryptographic solutions.

• Serve as the primary responsible engineer for certification of products to National Security Agency requirements, including Information Assurance Security Related Design (IASRD) Requirements and Security Evaluation Requirements Document (SERD)

• Guide implementation of secure network design, segmentation strategies, encryption mechanisms, and cybersecurity controls across product architectures.

• Lead multi-disciplinary engineering teams through requirements definition, concept development, design execution, integration, verification, and sustainment.

• Identify technical, certification, and program risks throughout the lifecycle and develop mitigation strategies that achieve real-world risk reduction.

• Conduct system performance analysis, architectural trade studies, and technical reviews to verify behavior under operational and security constraints.

• Mentor and develop engineers across multiple teams, providing technical guidance, training, and support while building productive relationships with engineering teams, product owners, executives, customers, and external partners.

• Prepare and present technical data at internal and customer reviews, clearly communicating technical details, project progress, and architecture decisions.

• Coordinate across systems, hardware, software, firmware, and production teams to ensure integrated and certifiable secure communications solutions.

• Support travel up to 20 percent as needed for stakeholder engagement, reviews, integration activities, and on-site program support.

Minimum 10 years of experience in security engineering, systems engineering, network engineering, or related technical roles.

Experience in certification of products to National Security Agency standards, including Information Assurance Security Related Design (IASRD) Requirements and Security Evaluation Requirements Document (SERD).

Experience in at least one of the following areas related to encrypted communications products: systems engineering, electronic hardware design, firmware design, or software design.

Knowledge of secure system design, communications networks, cybersecurity controls, threat modeling, cryptographic algorithms, and cryptographic protocols.

Demonstrated ability to analyze risk and apply security controls to achieve practical risk reduction while balancing security, performance, and reliability.

Familiarity with working across organizational boundaries including engineering, production, and business development.

Familiarity with modern network protocols, routing, wireless communications, encryption, and network security architecture.

Excellent communication skills with the ability to influence stakeholders at multiple levels.

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.

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Work for Warriors is a no-cost employment program of the California Military Department for Service Members, Veterans, and military family members. The Veteran Staffing Consultant for L3Harris is Chuck Callahan.