Information Systems Security Officer

General information

Requisition # R63249 Locations USA-MD-Hanover Posting Date 09/09/2025 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 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