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L3Harris Technologies

Global defense contractor delivering aerospace tech

Information System Security Officer - Isso 3

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

About the Job

Requirements

  • A bachelor's degree and at least 4 years of prior relevant experience, or a graduate degree and at least 2 years of prior related experience; alternatively, at least 8 years of prior related experience in lieu of a degree.
  • A Security+ certification is required.
  • Applicants accepting a conditional offer may be subject to government security investigations and must meet eligibility requirements for access to classified information.
  • The role requires a TS/SCI security clearance with SCI eligibility.

Responsibilities

  • Maintain information system security documentation and records, perform system and network self-inspections and audits, and support media control and integrity.
  • Interact with internal and external customers regarding changes that may affect system authorization and compliance; assist the ISSM with policy creation and updates; and provide assistance on information system security issues that may affect the customer's mission.
  • Develop, deploy, and execute controls and defenses to secure company technology, information systems, and system deliverables.
  • Support secure systems operations and maintenance.
  • Assess and mitigate system security threats and risks throughout the program life cycle.
  • Perform system certification and accreditation planning, testing, and validation activities in coordination with government customers.
  • Execute first-level responses and address reported or detected incidents.
  • Interpret, analyze, and report events and anomalies in accordance with directives, including initiating, responding to, and reporting discovered events.
  • Safeguard information against unauthorized use, infiltration, exfiltration, modification, destruction, or disclosure of national security information.
  • Notify the ISSM of changes affecting the ATO and coordinate hardware, software, or firmware changes with the ISSM before making changes.
  • Build aircraft disk pack sets and maintain and update them as needed to support the test team and the Air Force.
  • Travel 25% of the time to support offsite test events.
  • Frequently support night and/or weekend SCIF manning for planned site power or network outages that affect the security posture; support test events and customer needs as required.
  • Analyze and/or administer security controls for information systems as part of the systems' Continuous Monitoring Plan.
  • Follow approved procedures for clearing, sanitizing, and destroying hardware and media.
  • Implement, enforce, communicate, and develop security policies or plans for data, software applications, hardware, and telecommunications.
  • Provide details and artifacts for Information System Security Risk Management Framework documentation (SSP, SAR, RAR, SAP, SCTM, POA&M, etc.) to support assessment and authorization of assigned systems.
  • Perform periodic hardware and software inventories to maintain strict control over assigned assets.
  • Identify system security control shortcomings, annotate POA&M entries for deficient items, and support remediation of control deficiencies.
  • Work with team members to attain and maintain Two-Person Integrity when working with open removable media.

Desired Qualifications

  • Experience with information system security assessment and hardening tools such as SCAP Compliance Checker, ACAS, and Nessus.
  • Prior Xacta 360 or Xacta.io training, knowledge, and relevant experience.
  • Working knowledge of WAN/LANs, including routers, switches, and firewalls.

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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