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L3Harris Technologies

Global defense contractor delivering aerospace tech

Senior Cyber Security Engineer

Security Engineering & ArchitectureUpdated on Nov 14
Full-time

About the Job

Requirements

  • Requires strong knowledge of the job area and typically has a specialty within the discipline; may have broad knowledge of project management.
  • Requires a Bachelor's degree and a minimum of 6 years of prior relevant experience, or a Graduate degree and a minimum of 4 years of prior related experience; in lieu of a degree, requires a minimum of 10 years of prior related experience.
  • Experience with High Assurance products, IASRD, and SERD requirements.
  • Experience configuring and using cyber defense and vulnerability-assessment tools such as ACAS and SCC.
  • Experience with developing and certifying High Assurance Devices on embedded systems is preferred.
  • Experience with Risk Management Framework accreditation and authorization on embedded systems is preferred.
  • Experience developing and implementing System Security Engineering to protect CPI throughout the System Development Lifecycle is preferred.
  • Experience assessing systems for Critical Program Information (CPI) is preferred.
  • Experience conducting trade studies and developing System Security Engineering requirements is preferred.
  • Experience assessing threats through attack and countermeasure analysis is preferred.
  • Experience conducting Verification and Validation activities is preferred.
  • Experience using DoD 5200.39 to identify and protect CPI is preferred.
  • Experience engineering trustworthy and secure systems in accordance with NIST 800-160 is preferred.
  • Experience developing and implementing comprehensive Program Protection Plans to safeguard critical program information and technologies is preferred.
  • Experience drafting Program Protection Plans, Cybersecurity Strategies, Security Classification Guides, and System Security Engineering Plans is preferred.
  • Experience interacting with customers to define System Security Engineering requirements, solutions, trades, costs, implementation, system impacts, and effectiveness is preferred.
  • Must have a successful track record planning, executing, and tracking personal task assignments.
  • Experience leading small product-development teams and mentoring other engineers is preferred.
  • A minimum of a Collateral Secret security clearance is required.

Responsibilities

  • Apply current Systems Security Engineering methods, practices, and technologies to the architecture, design, development, evaluation, and integration of systems and networks to maintain system security.
  • Work with Government customers to define and implement security protection needs, concerns, and requirements with appropriate fidelity and rigor throughout system lifecycles to support security authorization.
  • Work with systems developers or commercial product vendors to design and evaluate secure systems, networks, and database products.
  • Use encryption technology, vulnerability analysis, and security management methods.
  • Integrate multiple methods into a cohesive system security perimeter and environment, including policies and procedures to monitor and maintain the environment.
  • Prepare Certification and Accreditation documentation using standards under RMF and derivative processes, including DoD 8510, JSTIG, ICD-503, and CNSSI 1253, to achieve security authorization of supported systems.
  • Represent program security needs, concerns, and requirements at customer meetings.
  • Certify Cryptographic High Assurance Devices.
  • Assess security and privacy controls in embedded systems using NIST 800-53.
  • Use Risk Management Framework accreditation and authorization processes, including RMF steps 1–4: categorization, controls selection, control implementation, and security assessment; develop standard body-of-evidence packages.
  • Process accreditation and authorization packages.
  • Accredit Platform IT systems through RMF.
  • Collaborate with customers, internal program teams, and leadership to address program needs.
  • Provide DoD software selection and approval processes for commercial off-the-shelf, government off-the-shelf, and free and open-source software.
  • Support security engineering activities, including basis-of-estimate development, requirements development, design, testing, configuration management, and maintenance of information systems and data.
  • Assist program security in developing policies and procedures for emerging security technologies.
  • Support evaluation, qualification, testing, and delivery of security architecture improvements, obsolescence replacements, and vulnerability-response projects.
  • Perform work 100% onsite in a lab environment, with no remote-support option.

Desired Qualifications

  • Experience developing and certifying High Assurance Devices on embedded systems.
  • Experience with Risk Management Framework accreditation and authorization on embedded systems.
  • Experience developing and implementing System Security Engineering to protect CPI throughout the System Development Lifecycle.
  • Experience assessing systems for Critical Program Information (CPI).
  • Experience conducting trade studies and developing System Security Engineering requirements.
  • Experience assessing threats through attack and countermeasure analysis.
  • Experience conducting Verification and Validation activities.
  • Experience using DoD 5200.39 to identify and protect CPI.
  • Experience engineering trustworthy and secure systems in accordance with NIST 800-160.
  • Experience developing and implementing comprehensive Program Protection Plans to safeguard critical program information and technologies.
  • Experience drafting Program Protection Plans, Cybersecurity Strategies, Security Classification Guides, and System Security Engineering Plans.
  • Experience interacting with customers to define System Security Engineering requirements, solutions, trades, costs, implementation, system impacts, and effectiveness.
  • Experience leading small product-development teams and mentoring other engineers.

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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