Information System Security Officer

Leidos Holding • $87K — $157K *
Information Technology
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • Active Top Secret clearance with ability to obtain SCI clearance and undergo a Counterintelligence Polygraph (CIP).
  • Current DoD 8140/8570 IAT II certification (Security+ce or equivalent).
  • Bachelor's degree in a computer-related discipline with at least 4 years of relevant experience.
  • Experience in cybersecurity, systems security, or hardening.
  • Familiarity with compliance-based auditing using RMF, DAAPM, NISPOM, or JSIG.

Responsibilities

  • Assess and monitor system compliance and security plan development.
  • Investigate security violations and prepare corrective action reports.
  • Conduct technical and administrative assessments of systems.
  • Integrate new cybersecurity processes and tools into existing frameworks.
  • Support the creation and review of cybersecurity documentation.
  • Manage day-to-day compliance of classified information systems.
  • Assist in the Risk Management Framework (RMF) authorization process.

Benefits

  • Comprehensive health and wellness programs.
  • Opportunities for professional development and training.
  • Flexible work arrangements.
  • Retirement savings plans with company matching.
  • Employee assistance programs for personal and professional support.
Full Job Description

In this role, you will be responsible for supporting our Classified Information System Cybersecurity/Information Assurance Program. You will report to the Information System Security Manager (ISSM) on all aspects of classified information system security compliance.


Location: All work will be performed on site in Huntsville, AL.


Clearance: You must hold an active Top Secret clearance eligibility to obtain SCI eligibility and undergo a Polygraph clearance investigation post hire.


Primary Responsibilities


  • Assessing and monitoring system compliance, auditing, security plan development and delivering information systems security education and awareness
  • Investigating information system security violations and help prepare reports specifying corrective and preventative actions
  • Conducting technical and administrative assessments
  • Integrating new cybersecurity processes, procedures, and tools
  • Supporting the creation, review and update of cybersecurity documentation and other technical writing
  • Managing the day-to-day compliance of our classified information systems by:
  • Auditing information systems to ensure compliance with security policies and procedures while reporting any discrepancies to the ISSM, ISO or FSO.
  • Assisting in the Risk Management Framework (RMF) authorization process by developing and maintaining artifacts for the IS Body of Evidence (BoE).
  • Reviewing and approving (within authority) Configuration Management (CM) requests of all associated hardware, software, and security relevant functions is maintained and documented as part of CCB approval process.
  • Assisting with sanitization and release of hardware in accordance with security policies or Authorizing Official (AO) guidance.
  • Testing/evaluation and application of required technical security controls and periodic inspections of information systems.

Basic Qualifications


  • An active Top Secret clearance is required to be considered, with the ability to obtain SCI clearance and undergo a Counterintelligence Polygraph (CIP) if hired. Position requires having and maintaining a Security+ or equivalent certification to be considered.
  • Must hold current DoD 8140/8570 IAT II (Security+ce or equivalent).
  • BS degree and at least 4 years of applicable, relevant experience in a computer-related discipline.

Relevant Experience Considered:

  • Cybersecurity, systems security or hardening, Information Technology
  • Compliance-based auditing using the Risk Management Framework (RMF), DCSA Assessment and Authorization Process Manual (DAAPM), National Industrial Security Program Operating Manual (NISPOM) or Joint Special Access Program (SAP) Implementation Guide (JSIG)
  • Experience working with and/or supporting computer technologies (such as: databases, operating systems, computer network hardware, software programs, hardware troubleshooting or electronics)
  • Physical security, project or program management, office management, senior administration, or account management
  • Experience with security configurations across multiple operating systems in various environments, to include Windows, Linux, UNIX, utilizing Active Directory/Group Policy, Centrify, etc. is required.
  • Highly organized and self-motivated with excellent documentation skills and the ability to work with minimal supervision.

Preferred Qualifications


  • Experience with IT (Windows, Linux) is preferred.
  • Experience working in DoD classified operating and/or laboratory environments
  • Experience with various information system security tools that address vulnerability analysis and mitigation. These may include Solarwinds, Tenable, SCAP.
  • Familiarity with implementation of Government directives and policies derived from NIST, STIG, DoD, or other Government Regulatory compliance standards within a professional industry
  • Experience in the execution of the Assessment & Authorization processes, as defined within the Risk Managed Framework (RMF)
  • Experience providing technical security consultation for complex, cross-domain, heterogeneous classified networked environments in collaboration with internal/external Customers, Information Technology (IT)
  • Familiarity with the execution and management of cyber incident response; preservation, containment, and eradication



Original Posting:
September 28, 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 $87,100.00 - $157,450.00

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.

About Leidos Holding

Leidos Holding Careers

Joining Leidos Holding presents an unparalleled opportunity to advance one's career with a leader in innovation and technology. The company offers a plethora of job opportunities aimed at fostering professional growth and development in a diverse and inclusive environment.

Explore Career Opportunities

Leidos Holding is actively seeking skilled professionals who are passionate about leveraging their expertise to drive innovation and leadership in their fields. With a variety of open positions, Leidos Holding provides a platform for individuals to challenge themselves in a dynamic work environment.

Innovation and Professional Growth

At Leidos Holding, innovation is at the core of everything they do. Employees are encouraged to think creatively and push boundaries. The company supports this drive for innovation through comprehensive professional development and diversity training programs that are designed to enhance skills and foster leadership.

Commitment to Diversity and Inclusion

Leidos Holding is committed to creating a workplace where diversity is not only recognized but celebrated. With a culture that values and promotes diversity, Leidos Holding ensures that all team members have the opportunity to contribute, learn, and grow.

Internship Programs

For those starting their career, Leidos Holding offers internship programs that provide a robust foundation in the industry. Internships are a great way to develop essential skills, gain valuable work experience, and build professional networks.

Benefits and Culture

Employees at Leidos Holding enjoy a range of benefits designed to support their professional and personal lives. The company culture is built on a foundation of respect and integrity, providing a supportive and collaborative environment where every team member is valued.

Join the Team

Leidos Holding is hiring! Explore job opportunities that match your skills and interests. Leidos Holding looks for driven, curious, and innovative individuals to join their team. Positions are available across various disciplines and experience levels.

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Prepare for Your Interview

To prepare for an interview at Leidos Holding, candidates should familiarize themselves with the company's missions and values, update their resumes, and be ready to discuss how their background and skills align with the position they are applying for.

Networking and Career Advancement

Leidos Holding encourages its employees to engage in networking within the company to discover new opportunities for career advancement. The leadership team at Leidos Holding is dedicated to supporting employees in their career paths with ample opportunities for networking and growth.

Explore Leidos Holding Jobs and Careers

Discover the exciting career opportunities at Leidos Holding today. With a commitment to employee growth, innovation, and diversity, Leidos Holding is the perfect place to advance your career. Check out the latest job listings and find your perfect fit at Leidos Holding.

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