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L3Harris Technologies

Global defense contractor delivering aerospace tech

Scientist – Systems Engineering

Security Engineering & ArchitectureUpdated on Nov 14
Full-timeCarlsbad, CA, USA

About the Job

Requirements

  • A bachelor's degree and at least 12 years of prior relevant experience, or a graduate degree and at least 10 years of prior related experience; alternatively, at least 16 years of prior related experience in lieu of a degree.
  • An active U.S. Secret security clearance.
  • At least 10 years of experience in security engineering, systems engineering, network engineering, or related technical roles is preferred.
  • Experience certifying products to National Security Agency standards, including Information Assurance Security Related Design Requirements and Security Evaluation Requirements Document, is preferred.
  • Experience in at least one area related to encrypted communications products—systems engineering, electronic hardware design, firmware design, or software design—is preferred.
  • Knowledge of secure system design, communications networks, cybersecurity controls, threat modeling, cryptographic algorithms, and cryptographic protocols is preferred.
  • Ability to analyze risk and apply security controls to reduce practical risk while balancing security, performance, and reliability is preferred.
  • Familiarity with cross-organizational work among engineering, production, and business development is preferred.
  • Familiarity with modern network protocols, routing, wireless communications, encryption, and network security architecture is preferred.
  • Ability to communicate effectively and influence stakeholders at multiple levels is preferred.

Responsibilities

  • 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 Requirements and Security Evaluation Requirements Document.
  • Guide implementation of secure network design, segmentation strategies, encryption mechanisms, and cybersecurity controls across product architectures.
  • Lead multidisciplinary 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 practical 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 by 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 deliver integrated and certifiable secure communications solutions.
  • Support travel up to 20 percent for stakeholder engagement, reviews, integration activities, and on-site program support as needed.

About the Company

L3Harris Technologies

Global defense contractor delivering aerospace tech

L3Harris Technologies provides advanced aerospace, defense, and space systems for governments and commercial customers. Its products include sensors, communications, and propulsion—such as tactical radios, night-vision gear, satellite payloads, missile defense, and space propulsion—delivered as integrated systems for operations across air, land, sea, space, and cyber domains. The company blends legacy technologies from two joining giants with newer capabilities, faster acquisition cycles, and a focus on missiles, space, and resilient communications to field solutions quickly. Its goal is to be a trusted, scale-ready provider of next‑generation defense and intelligence capabilities for national security and related customers.

Company size
10,001+
Company stage
IPO
Headquarters
Melbourne, FL
Founded
1895

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