Information System Security Office (ISSO)

Leidos

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profile Job Location:

Chantilly, VA - USA

profile Monthly Salary: $ 131300 - 237350
Posted on: 3 days ago
Vacancies: 1 Vacancy

Job Summary

Who We Are:

Kudu Dynamics isaLeidos ownedcompanyforged out of a decade of experience in computer network operations and staffed with talent who have built overseen and enhanced capabilities throughout the entire USG arsenal. Our team of hackers engineers makers and shakers have experience spanning centuries of research development and operations

missions - across desktop mobile IoT and embedded platforms. Kudu Dynamics is uniquely qualified to anticipate tomorrows threats and build the next capabilities.

Job Description:

The Information System Security Officer (ISSO) is responsible for maintaining the security posture of assigned information systems in accordance with federal cybersecurity requirements including NIST SP 800-53 JSIG RMF and other applicable DoD and agency regulations. The ISSO will ensure compliance with security policies manage system security documentation conduct risk assessments and support authorization processes.

Required Qualifications:

  • Active Top Secret Security Clearance.
  • CompTIA Security.
  • Bachelors degree in Cybersecurity Information Technology or a related field (or equivalent work experience).
  • Minimum of 35 years of experience in information system security cybersecurity or IT security management.
  • Experience supporting classified systems under the DoD Joint SAP Implementation Guide (JSIG) or ICD 503.
  • Strong knowledge of NIST SP 800-53 Risk Management Framework (RMF) and relevant DoD cybersecurity policies.
  • Experience with as eMASS ACAS Tenable/Nessus Splunk ManageEngine or other compliance and vulnerability scanning tools.
  • Strong communication and documentation skills.
  • Understanding of networking system administration and security architecture principles.
  • Working knowledge of both Windows and Linux Operating systems.
  • Experience with Security Technical Implementation Guides (STIGs) and Security Content Automation Protocol (SCAP) Compliance Checker.

Preferred Qualifications:

  • Experienced with Microsoft Word and Excel.
  • Experienced with Adobe Professional or other PDF editing software.

Key Responsibilities:

  • Implement manage and enforce cybersecurity policies and procedures for assigned systems.
  • Coordinate with stakeholders to support achieving Approval to Operate (ATO) continuous monitoring and system decommissioning.
  • Develop and maintain system security plans (SSPs) risk assessments contingency plans Security Controls Traceability Matrixes (SCTM) and related documentation.
  • Monitor system security controls and continuously assess the security posture of the system.
  • Ensure compliance with applicable federal and DoD cybersecurity frameworks (e.g. NIST RMF JSIG).
  • Conduct vulnerability scans and recognize information system vulnerabilities.
  • Review and analyze system audit logs to identify anomalous activity and potential threats to network resources.
  • Participate in security control assessments and coordinate with the Information System Owner (ISO) System Administrator (SA) and Security Control Assessor (SCA).
  • Report security incidents conduct incident response coordination and support remediation activities.
  • Maintain awareness of cybersecurity threats and recommend mitigation strategies.
  • Track Plans of Action and Milestones (POA&Ms) and ensure timely remediation.
  • Support customer inspections.
  • Provide security guidance and awareness to system users and technical staff.
  • Request and track standard and privileged system users.

At Leidos we dont want someone who fits the moldwe want someone who melts it down and builds something better. This is a role for the restless the over-caffeinated the ones who ask whats next before the dust settles on whats now.

If youre already scheming step 20 while everyone else is still debating step 2 good. Youll fit right in.

Original Posting:

January 6 2026

For U.S. Positions: While subject to change based on business needs Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range:

Pay Range $131300.00 - $237350.00

The Leidos pay range for this job level is a general guideline onlyand not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job education experience knowledge skills and abilities as well as internal equity alignment with market data applicable bargaining agreement (if any) or other law.

Who We Are:Kudu Dynamics isaLeidos ownedcompanyforged out of a decade of experience in computer network operations and staffed with talent who have built overseen and enhanced capabilities throughout the entire USG arsenal. Our team of hackers engineers makers and shakers have experience spanning ce...
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Key Skills

  • International Development
  • EMC
  • JavaScript
  • Import & Export
  • Airlines
  • Asp.Net MVC

About Company

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Leidos is an innovation company rapidly addressing the world's most vexing challenges in national security and health. Our 47,000 employees collaborate to create smarter technology solutions for customers in these critical markets.

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