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L3Harris Technologies

Global defense contractor delivering aerospace tech

Senior Specialist - Information Security Systems Engineer, Secret Clearance

Security Engineering & ArchitectureUpdated on Nov 14
Full-timePalm Bay, FL, USANo salary listed

About the Job

Requirements

  • 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; alternatively, at least 10 years of prior related experience in lieu of a degree.
  • Active collateral Secret security clearance is required.
  • Experience leading security and privacy control assessments in embedded systems using NIST 800-53.
  • Experience leading programs through Risk Management Framework (RMF) accreditation and authorization processes, including RMF steps 1–4 and standard Body of Evidence package development.
  • Experience with accreditation and authorization package processing.
  • Experience with RMF accreditation of Platform IT systems.
  • Experience configuring and using cyber defense and vulnerability assessment tools such as ACAS and SCC.
  • Experience with Department of Defense software selection and approval processes for commercial off-the-shelf, government off-the-shelf, and free and open-source software.
  • Experience with security testing and verification.
  • Experience as a Control Account Manager using Earned Value Management System tools.
  • Experience as an Integrated Product Team Lead.
  • Ability to obtain and maintain a Department of Defense 8140 or NIST 800-181 certification appropriate for the position within 6 months of starting.
  • Preferred experience with NSA Type 1 certification of cryptographic high-assurance devices.
  • Experience with NSA High Assurance products and IASRD and SERD requirements.
  • Experience leading anti-tamper development and implementation throughout the system development lifecycle, including critical program information assessments, trade studies, anti-tamper requirements development, security architecture implementation, threat assessment through attack/countermeasure analysis, and verification and validation.
  • Subject-matter expertise in anti-tamper.
  • Experience using Department of Defense 5200.39 to identify and protect critical program information.
  • Experience engineering trustworthy and secure systems in accordance with NIST 800-160.
  • Ability to obtain a Top Secret clearance; active TS/SCI clearance is highly desired.

Responsibilities

  • Apply systems security engineering methods, practices, and technologies to the architecture, design, development, evaluation, and integration of systems and networks to maintain system security.
  • Work throughout the system lifecycle with customers to define and implement security protection needs, concerns, and requirements with appropriate rigor and fidelity, enabling sustainable security authorization.
  • Work with systems developers and commercial product vendors to design and evaluate secure systems, networks, and database products using encryption technology, vulnerability analysis, and security management.
  • Integrate multiple methods into a cohesive system security perimeter and environment, and implement policies and procedures to monitor and maintain the environment.
  • Prepare Certification and Accreditation documentation using industry standards including DITSCAP, NIACAP, DCID 6/3, Common Criteria, and NIST 800-37 to achieve security authorization of supported systems.
  • Represent program security needs, concerns, and requirements at customer meetings.
  • 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 improvement, obsolescence replacement, and vulnerability response projects.
  • Work 100% onsite in a laboratory environment; remote support is not available.
  • Draft Program Protection Implementation Plans, Cybersecurity Strategies, Security Classification Guides, and Anti-Tamper Plans.
  • Interact with customers to define anti-tamper requirements, solutions, trade-offs, costs, implementation, system impacts, and effectiveness.

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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