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L3Harris Technologies

Global defense contractor delivering aerospace tech

Manager – Information Security Systems Engineer

Security Governance, Risk & ComplianceUpdated on Nov 14
Full-timeGreenville, TX, USANo salary listed

About the Job

Requirements

  • Ability to obtain a U.S. Top Secret/Sensitive Compartmented Information (TS/SCI) security clearance.
  • A Bachelor's degree and at least 9 years of prior Information Security Systems Engineering (ISSE) experience, or a graduate degree and at least 7 years of prior ISSE experience; alternatively, 13 years of prior ISSE experience in lieu of a degree.
  • CompTIA Security+ certification.
  • Demonstrated experience leading and establishing guidance and accountability.
  • Experience with Xacta or eMASS.
  • Understanding of the Risk Management Framework process and best practices for vulnerability management and compliance.
  • Experience with a Risk Management Framework based on National Institute of Standards and Technology (NIST) 800-53 documentation.
  • Experience overseeing Authority to Operate (ATO) processes.
  • Experience developing and managing Plans of Action and Milestones (POA&Ms) associated with Assessment and Authorization processes.
  • Experience authoring and updating Assessment and Authorization body of evidence (BOE) documentation and Security Relevant Changes.
  • Understanding of networking.

Responsibilities

  • Lead the Accreditation, Authorization and Audit team in managing and implementing secure systems.
  • Ensure the security of information systems, networks, and data throughout their lifecycle.
  • Lead security engineering activities, develop and implement security solutions, and ensure compliance with relevant standards and regulations.
  • Work with Government customers and engineering development teams to define and implement security protection needs, concerns, and requirements with appropriate fidelity and rigor throughout the system lifecycle, supporting attainment of an ATO.
  • Track assigned systems' Assessment and Authorization status and oversee accreditation and re-accreditation actions.
  • Establish a rigorous audit program for assigned programs.
  • Improve existing processes or establish new processes and systems.
  • Build relationships with engineering teams to determine implementation paths that meet security objectives.
  • Forecast Systems Engineering manpower needs based on program and potential demand forecasts.
  • Establish training requirements for the team's continued professional development to meet business goals.
  • Create workforce and staffing plans.
  • Communicate within and outside the organization to influence leadership to accept new practices, approaches, and concepts.
  • Socialize ideas, make recommendations, and gain team consensus.
  • Travel 10% based on business needs.
  • Work 100% on-site; the role cannot be performed remotely.

Desired Qualifications

  • Requirements management.
  • Proposal development.
  • Understanding of Linux audit and logging system architecture.
  • Understanding of directory services, including Active Directory and Lightweight Directory Access Protocol (LDAP).
  • Understanding of computer networking and familiarity with NIST publications.
  • Experience with application hardening through code scanning tools such as Coverity or Fortify and mitigating findings.
  • CompTIA Security+, Cybersecurity Analyst (CySA), CompTIA Advanced Security Practitioner (CASP), or Certified Information Systems Security Professional (CISSP) certifications.
  • TS/SCI clearance and Counterintelligence (CI) polygraph.

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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