**MANTECH** seeks a motivated, career and customer-oriented **Information Systems Security Manager (ISSM)** to join our team. This position is **onsite** in **Lexington Park, MD** .

+ Assisting with the development, maintenance, and oversight of the Information System (IS) security program and baseline policies for assigned systems and enclaves

+ Supporting systems through the Risk Management Framework (RMF) process by drafting Assessment and Authorization (A&A) documentation, System Security Plans (SSPs), and Plans of Action and Milestones (POA&Ms)

+ Tracking continuous monitoring strategies and data feeds to ensure system security postures remain compliant and effective against emerging threats

+ Participating in vulnerability monitoring, basic auditing workflows, and remediation logging efforts using automated compliance and scanning tools

+ Supporting investigations into security anomalies and incidents while collaborating with multidisciplinary, multiservice, and multiagency teams

+ Assisting with cybersecurity awareness coordination, system user training tracking, and professional documentation delivery across the organization

+ Providing input to the Change Control Board (CCB) process to log and review system modifications, ensuring they do not degrade the baseline security posture

+ 10+ years of relevant Information Systems Security experience; with at least 6 years of that experience in DoD Cybersecurity and RMF

+ Must have a DoD Cyberspace Workforce computing certification (i.e CISSP, SSCP or similar)

+ Working knowledge of Microsoft Office (Word, PowerPoint, and Excel) and applicable Risk Management Framework tools

+ Must be thoroughly familiar with security policy/manuals and the appropriate ICDs/JAFANs/DOD/DOW Manuals and other guiding policy documents

+ Must be a U.S. Citizen with an active Secret Clearance and the ability to obtain a Top-Secret security clearance.

+ Needs to occasionally move about inside the office to access file cabinets, office machinery, or technical equipment.

+ Frequently communicates with co-workers, management, and customers, which may involve delivering presentations.

MANTECH International Corporation considers all qualified applicants for employment without regard to disability or veteran status or any other status protected under any federal, state, or local law or regulation.

If you need a reasonable accommodation to apply for a position with MANTECH, please email us at careers@mantech.com and provide your name and contact information.