Information Systems Security Officer (ISSO)

Leidos; San Antonio (TX); On-site; USD 87,000 - 157,000; Full time

Benefits offered by this job

Health and Wellness programs

Paid Leave and Retirement

Job summary

Leidos is seeking a senior cybersecurity professional to advise government personnel on risk levels and security postures for systems aligning with Air Force CSSP requirements. You will ensure compliance, review POA&Ms, and coordinate across technical, cybersecurity, program, and government stakeholders to support mission objectives.

The role requires a Top Secret/SCI clearance, DoD 8140 / DCWF/IAT II certifications, and strong communication and analytical skills.

Qualifications

• Bachelor’s degree or higher in Cybersecurity or a related field.
• 5+ years of relevant cybersecurity experience.
• Current Top Secret/SCI security clearance with ability to obtain additional or higher read-ins as required.
• Must meet DoD 8140 / DCWF certification or IAT Level II.
• Strong communication and analytical skills.
• Knowledge of DoD RMF and incident-response methodologies.
• Understanding of eMASS and DoD authorization packages.

Responsibilities

• Advise Government personnel on risk level and security posture of systems.
• Support cybersecurity requirements and policies aligned with organizational mission.
• Validate compliance with policies, regulations, and laws.
• Review POA&Ms and remediation activities.
• Coordinate across stakeholders to resolve issues and support mission objectives.
• Serve as a cybersecurity resource with IT infrastructure or security services focus.
• Perform other duties as assigned.

Skills

Top Secret/SCI clearance

IAT Level II

RMF

Disaster recovery

COOP planning

PII security

eMASS

Education

Bachelor’s degree in Cybersecurity or related field

Job description

Primary Responsibilities

Advise Government personnel on the risk level and security posture of systems requesting alignment with the Air Force CSSP. Support successful implementation and functionality of cybersecurity requirements and applicable information technology policies and procedures consistent with organizational mission and objectives. Continuously validate organizational and system compliance with applicable policies, guidelines, procedures, regulations, and laws. Review cybersecurity requirements to ensure they are appropriately incorporated into system and organizational continuity planning. Identify alternative information-security strategies to address organizational security objectives. Identify areas of noncompliance and assess their impact on risk and the overall effectiveness of the cybersecurity program. Review policy standards and implementation strategies to ensure procedures and guidelines comply with applicable cybersecurity policies. Ensure Plans of Action and Milestones (POA&Ms) and remediation activities provided by system owners are established and appropriately addressed. Review cybersecurity program plans and requirements for supported environments. Analyze work plans for completeness and support development of status reports and quality-control activities. Proactively identify technical deficiencies and develop practical, workable solutions. Communicate customer expectations to project teams and elevate appropriate issues to senior project personnel. Coordinate across technical, cybersecurity, program, and Government stakeholders to resolve issues and support mission objectives. Serve as a technical cybersecurity resource with potential specialization in IT infrastructure or security services. Perform other duties as assigned.

Basic Qualifications

Bachelor’s degree or higher in Cybersecurity or a related field.

5+ years of relevant cybersecurity experience.

Additional related education or certifications may be considered in lieu of experience.

Current Top Secret/SCI security clearance with ability to obtain additional or higher read-ins as required.

Must meet applicable DoD 8140 / Defense Cyber Workforce Framework (DCWF) certification or qualification requirements. / IAT Level II certification.

Strong communication, technical writing, analytical, and presentation skills.

Knowledge of national and international laws, regulations, policies, and ethical requirements applicable to cybersecurity.

Knowledge of the operational impacts associated with cybersecurity incidents and security deficiencies.

Knowledge of cybersecurity principles used to identify and manage risk.

Knowledge of cybersecurity risk-management processes.

Knowledge of disaster recovery and Continuity of Operations (COOP) planning.

Knowledge of incident-response and incident-handling methodologies.

Knowledge of the DoD Risk Management Framework (RMF).

Knowledge of enterprise incident-response programs, roles, and responsibilities.

Knowledge of Personally Identifiable Information (PII) security requirements.

Understanding of eMASS and Department of Defense authorization/accreditation packages.

Preferred Qualifications

CSSP Infrastructure Support certification.

Experience performing ISSO or ISSM functions.

Experience with Cyber Network Defense and Analysis.

Experience with cloud-security engineering.

Prior Air Force or Department of Defense cybersecurity experience.

Agile training or experience.

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.

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.

About 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.