(ISSO) Information Systems Security Officer

Leidos LLC; Virginia (MN); On-site; USD 87,000 - 157,000; Full time

Job summary

Leidos Defense Group is seeking an Information Systems Security Officer (ISSO) for Langley AFB, VA, to support TS/SCI SAP environments for AF DCGS and related wings. Responsibilities include accreditation, risk management, and security education across SAP systems.

Qualifications include a Bachelor’s or Associate’s degree with extensive IA experience, TS/SCI eligibility, and IAT Level II certification. Expect collaboration with AF stakeholders and a strong emphasis on RMF and A&A workflows.

Qualifications

• Bachelor’s degree with 6 years of relevant experience, or an Associate’s with 10 years of experience.
• Minimum of 4 years of IA experience required.
• Current TS/SCI clearance eligibility at start of employment; DoD 8570.01 IAT Level II certification required.

Responsibilities

• Manage daily security accreditation and certification activities for TS/SCI SAP systems.
• Monitor SAP systems and environments; update security plans and evaluate security impact of changes.
• Oversee SAP account authorization, creation and management.

Skills

IA experience

Clearance eligibility

IAT Level II certification

Education

Bachelor’s degree in related field

Associate’s degree

Tools

RMF

A&A

Xacta IA Manager

Job description

Grow your career with Leidos! Through hands-on training, strong teamwork, and exposure to advanced technical challenges, we’ll help you accelerate your professional path. The Leidos Defense Group is seeking qualified candidates for an Information Systems Security Officer (ISSO) position at Langley AFB. This role supports a major Military Intelligence Program aligned with the USAF Air Combat Command (ACC) ISR mission. In this role, you will provide TS/SCI Special Access Program (SAP) ISSO support to the Air Force Distributed Common Ground System (AF DCGS) and the 480th ISR Wing at Joint Base Langley–Eustis, VA.

Primary Responsibilities

• Manage daily security accreditation and certification activities for TS/SCI SAP systems.
• Monitor SAP systems and environments, update security plans, manage system changes, and evaluate the security impact of modifications in accordance with operational and security directives.
• Oversee SAP account authorization, creation, and management.
• Ensure all personnel possess the required clearances, authorizations, and need-to-know.
• Develop and deliver security education, training, and awareness programs; ensure personnel complete required training prior to receiving SAP access.
• Report hardware, software, or firmware changes to the ISSM and ensure proper actions are taken when vulnerabilities or incidents arise, following all governing directives.
• Provide inputs to the DCGS System Security Authorization Agreement (SSAA).
• Prepare all on-site information assurance documentation.
• Maintain system accreditation data within the XACTA database.
• Create POA&Ms, and recommend or implement corrective actions identified in Security Assessment Reports (SARs).
• Collaborate with product developers, AF acquisition teams, security, IT, and operations personnel to develop and coordinate IA solutions during daily operations and regular working group forums.
• Work both independently and collaboratively with AF DCGS stakeholders; strong oral and written communication skills are essential.

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: August 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.

Basic/Required Qualifications

• Bachelor’s degree in a related field and 6 years of relevant experience, or an Associate’s degree and 10 years of relevant operational experience.
• Minimum of 4 years of IA experience required.
• Comparable experience may considered in lieu of a degree.
• Current TS/SCI clearance eligibility at start of employment.
• Current DoD 8570.01 IAT Level II certification prior to start date.

Desired Qualifications

• SAP access within the last 2 years.
• Extensive experience with RMF, Assessment & Authorization (A&A), and Xacta IA Manager workflows.

Pay Range

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.

Pay and Benefits

Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available here.

Securing Your Data

Leidos will never ask you to provide payment-related information at any part of the employment application process. And Leidos will communicate with you only through emails that are sent from a Leidos.com email address. If you receive an email purporting to be from Leidos that asks for payment-related information or any other personal information, please report the email to [e-mail].

Commitment and Diversity

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.

Company Profile

Leidos Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $17.2 billion for the fiscal year ended January 2, 2026. For more information, visit www.Leidos.com.