Job Description

Mantech seeks a motivated, career-driven, and customer-focused Information System Security Officer (ISSO) to join our team in Annapolis Junction, MD .

 

This position plays a critical role in supporting enterprise infrastructure capabilities for a global, mission-focused workforce. Supporting high-visibility Enterprise Infrastructure Services (EIS) organization, responsible for the delivery and security of MPO’s Enterprise Information Technology (EIT)—the foundation for enterprise-wide services. As an ISSO, you will work alongside customers, Integrated Product Teams (IPTs), and vendors to support the implementation and compliance of advanced EIT capabilities through Data Center & Compute Services.

 

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 10+ 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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