Information Systems Security Officer

General information

Requisition # R62987 Locations USA-MD-Laurel Posting Date 09/02/2025 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 seeking a motivated, career-driven, and customer-focused Information System Security Officer (ISSO) to join our team in Laurel, MD. You will play a critical role in supporting enterprise infrastructure capabilities for a global, mission-focused workforce. This position supports the 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. You will manage cybersecurity documentation, assess system vulnerabilities, and support the Risk Management Framework (RMF) lifecycle in alignment with Sponsor policies.

Responsibilities include, but are not limited to:

• Leads medium to large complex projects and major phases of very large projects.
• Provides highly technical and specialized guidance and solutions to complex IT problems.
• Assist with preparation and maintenance of documentation
• Propose, coordinate, implement, and enforce information systems security policies, standards, and methodologies.
• Assist with the CM for information system security software, hardware, and firmware.
• Maintain optional security posture for an information system or program.
• 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
• Support the initial authorization and reauthorization processes for system(s)
• Manage and control changes to the system and assessing the security impact of those changes.

Minimum Qualifications:

• Bachelor’s degree with 12+ years of relevant experience OR associate’s degree with 15 years of relevant experience OR high school diploma/GED with 20 years of relevant experience
• 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