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L3Harris Technologies

Global defense contractor delivering aerospace tech

Information Security Systems Engineer

Security Engineering & Architecture +1Confirmed live in the last 24 hours
Full-timeRochester, NY, USA

About the Job

Requirements

  • 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; alternatively, a minimum of 10 years of prior related experience in lieu of a degree.
  • Must have an active TS/SCI security clearance.
  • Must have DoD 8140.03 IASAE Level 1 or Level 2 certification.

Responsibilities

  • Support an engineering team in defining, designing, implementing, documenting, testing, and sustaining security solutions on National Security Systems or other systems engineered for government customers, using NIST Risk Management Framework standards and publications, CNSS Instruction 1253, the Joint SAP Implementation Guide, and Federal Information Processing Standards to certify and accredit systems.
  • Apply NIST Risk Management Framework practices and related publications by writing System Security Plans, Security Control Traceability Matrices, Continuous Monitoring Plans, Security Assessment Plans and Procedures, Security Concepts of Operations, and Plans of Action and Milestones.
  • Implement and assess security controls by writing system security categorization memoranda, recommending security control overlays, defining control baselines, applying controls to computing and network nodes, and verifying implementation.
  • Assist with systems and software engineering, including creating data flow diagrams and interface control documents, performing trade studies and Static Application Security Testing for application security, checking Secure Technical Implementation Guide compliance using Fortify or Coverity and GitLab within a DevSecOps continuous integration/continuous delivery pipeline, and generating summary reports.
  • Define and manage systems and security architectures, including system security boundaries, vulnerability management, and risk mitigation and remediation strategies for networks, systems, applications, and new technology initiatives.
  • Work with system developers or commercial product vendors to design and evaluate secure systems, networks, and database products using encryption technology, vulnerability analysis, and security management.
  • Address hardware, software, firewalls, intrusion detection systems, antivirus systems, software deployment tools, infrastructure/platform/software-as-a-service implementations in cloud environments, and develop Configuration Management Plans.
  • Define and manage security architecture for on-premises data center systems and their deployment to secure cloud-based systems, including configuring and using defense and assessment tools specific to each environment.
  • Perform the position entirely onsite; remote work is not available.

Desired Qualifications

  • Perform Model Based System Engineering using UML, SysML, or UAF.
  • Configure and operate vulnerability analysis tools such as Tenable Nessus security products.
  • Develop dashboards, configure rules, and operate or administer SIEM/audit reduction tools such as Splunk.
  • An active TS/SCI clearance with polygraph is highly desired.

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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