Jobs and Careers
MA
Information System Security Officer ISSO
ManTechUnited Statesfull_timeVerifiedPosted 9 Jun 2026
About the role
General information
Requisition #
R68499
Locations
USA-VA-Chantilly
Posting Date
06/08/2026
Security Clearance Required
TS/SCI w/ Poly
Remote Type
Onsite
Time Type
Full time
Description & Requirements
Unlock the secrets of intelligence with MANTECH! Join a dynamic team at the forefront of national security, providing advanced solutions to government intelligence agencies. Since 1968, we’ve been solving the toughest challenges with groundbreaking tech. Explore thrilling projects in Digital Transformation, Cybersecurity, IT, Data Analytics and Software Development. Elevate your career and make a difference. Your adventure begins now—unleash your potential with MANTECH!
MANTECH seeks a motivated, career and customer-oriented Information System Security Officer (ISSO) to join our team in Chantilly, VA.
Responsibilities include, but are not limited to:
- Ensure the day-to-day implementation, oversight, continuous monitoring, and maintenance of the security configuration, practices, and procedures for each IS. Ensure that selected security controls are implemented and operating as intended during all phases of the IS lifecycle. Ensure that system security documentation is developed, maintained, reviewed, and updated on a continuous basis.
- Provide liaison support between the system owner, System Administrators and other IS security personnel. Conduct required IS vulnerability scans according to risk assessment parameters.
- Develop Plan of Action and Milestones (POAMs) in response to reported security vulnerabilities
- Manage the risks to ISs and other NRO assets by coordinating appropriate correction or mitigation actions and oversee and track the timely completion of (POAMs). Coordinate system owner concurrence for correction or mitigation actions. Monitor security controls for NRO ISs to maintain security Authorized to Operate (ATO)
- Upload all security control evidence to the Governance, Risk, and Compliance (GRC) application to support security control implementation during the monitoring phase
- Ensure that changes to an NRO IS, its environment, and/or operational needs that may affect the authorization status are reported to the system owner and IS Security Manager (ISSM). Ensure the removal and retirement of ISs being decommissioned in coordination with the system owner, ISSM, and ISSR
Minimum Qualifications:
- Bachelors degree in Computer Science, Cybersecurity, or other cyber discipline and 5 years' experience performing duties of an Information Systems Security Officer (ISSO) at a cleared facility or 10+ years of experience with High School diploma
- Hold at least one of the following certifications: Certified Information Systems Security Professional
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