Information Systems Security Officer - ManTech : Job Details

Information Systems Security Officer

ManTech

Job Location : Hanover,MD, USA

Posted on : 2025-09-10T09:19:36Z

Job Description :

ManTech is currently looking for an Information Systems Security Officer (ISSO) to join our team in the Ft. Meade, MD area. In this role, you will provide support for a program, organization, system, or enclave's information assurance program and provide support for proposing, coordinating, implementing, and enforcing information systems security policies, standards, and methodologies.

Responsibilities include, but are not limited to:

  • Update and maintain hardware and software inventory records, including associated change logs
  • Support and coordinate Secure the Enterprise (STE) and Secure the Network (STN) activities
  • Review and address Xacta notices and ensure compliance documentation is accurate and current
  • Track, review, and resolve POAMs (Plan of Action and Milestones) related to IAVA/IAVAx findings
  • Develop and maintain System Security Plans (SSPs) for both new and existing systems
  • Analyze vulnerability scan results and collaborate with system owners to implement remediation
  • Leverage sponsor tools such as Gatekeeper, Xacta, SEAR, and LatteArt in daily operations

Minimum Qualifications:

  • Bachelor's degree with 15 years of relevant ISSO experience OR 4 additional years of related experience as an ISSO might be substituted for a degree
  • Experience with Xacta, LatteArt and other sponsor tools
  • Experience managing POAMs, performing audit log reviews, and maintaining secure system inventories
  • IAM I certification (DoD 8140 required upon start of employment. Acceptable certifications include CAP/CND/Cloud+/GSLC/Security + CE/HCISSP/CASP+CE/CISM/CISSP/ or CCISO)
  • Experience reviewing, preparing, and updating ATO packages in accordance with NIST Risk Management Framework and customer policy, procedures, and guidelines

Preferred Qualifications:

  • Knowledge of STE and STN processes and coordination
  • Experience with Gatekeeper, SEAR, SCANBOY
  • Demonstrated experience in SSP development and incident response management

Clearance Requirements

  • Must possess and maintain a current/active TS/SCI clearance with Polygraph

Physical Requirements:

  • Must be able to remain in a stationary position 50% of the time
  • Occasionally moves about inside the office to access file cabinets, office machinery, etc.
  • Frequently communicates with co-workers, management, and customers, including delivering presentations. Must be able to exchange accurate information in these situations
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