Jobs in the United States

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ISSO

Alexandria, VA, United States

Pay Range $87,100.00 - $157,450.00 The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary.

Apply on leidos.wd5.myworkdayjobs.com About employer

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Job details

Pay: Pay Range $87,100.00 - $157,450.00 The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary.
Experience: 1+ years of experience working with eMASS, RMF, and STIGs
Posting language: English
Posted: Nov 10, 2026

Original job description

Leidos is currently seeking an ISSO to join our team at the Mark Center in Alexandria, VA.

Clearance: An active Secret security clearance is required to start. Certification: You must hold a current DoD 8570 IAT II Certification to qualify.

This position allows up to 50% telework after a ramp up period (about 3-4 weeks spent 100% on-site). Telework is allowed at the discretion of our customer and may be subject to change.

Primary Responsibilities:

Establish and implement security procedures and practices in support of Customer goals and current DoD regulations.
Develop and update Assessment & Authorization (A&A) documentation (Body of Evidence) for management and continuous monitoring of information systems.
Using knowledge of the Information System (IS) and understanding of established Information Assurance (IA) and Cybersecurity requirements validate security policies and procedures outlined in the System Security Plan (SSP), customer policies & regulations, and ensure local policies are followed.
Initiate the authorization or re-authorization efforts and process for new or expiring systems and coordinate, schedule, and attend required meetings
Serve as the System Information System Security Officer (ISSO) for various Joint Service Provider (JSP) systems
Take corrective action to resolve problems identified and ensure systems are operated, maintained, and disposed of in accordance with established policies and procedures.
Perform security audits IAW established procedures. Develop process for the management, review, and retention of security audit data. Make decisions and implement corrective action as required to resolve audit discrepancies.
Author and review IS security-related documentation and submit to Enterprise Mission Assurance Support Service (eMASS).
As an IA Subject Matter Expert (SME), provide critical thinking to ensure system security requirements are addressed during all phases of the System Development Life Cycle (SDLC).
Conduct ongoing security reviews and tests of systems to verify security features and controls are functional and effective. Take corrective action to resolve identified vulnerabilities.
Provide security engineering review of proposed changes or additions to the IS (including hardware, software, or connectivity), and advise the Information System Security Manager (ISSM) of the security relevance.
Create and maintain processes and procedures for use by members of the ISSO team
Support the ISSO Team Lead in conducting lessons learned activities to improve the overall productivity and efficiency of the ISSO team
Communicates with internal team members across multiple areas and customer team members
Reviewing manual STIGs (ckls) utilizing STIGViewer
Reviewing ACAS Scans
Developing Project Management Plan to attain ATO

Qualifications:

DoD 8140 IAT Level II Certification
BS and 4+ of prior relevant experience, add'l experience may be considered in lieu of degree
1+ years of experience working with eMASS, RMF, and STIGs
Active Secret clearance or higher (program can support up to TS/SCI)

If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo - because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 - and moving faster than anyone else dares.

Original Posting:

November 10, 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 only and 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.

Apply on leidos.wd5.myworkdayjobs.com About employer

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Jobs in the United States