D&G Support Services, LLC is hiring: Information System Security Manager (ISSM)

Information System Security Manager (ISSM)

Onsite | Fort Belvoir, Virginia | Active Secret Clearance Required

Why This Role Exists

This position serves as the Information System Security Manager supporting Federal and Department of Defense research and operational environments. The ISSM is responsible for overseeing security posture, managing risk, ensuring compliance, and leading vulnerability management activities that protect mission-critical systems supporting national defense initiatives.

What You Will Do

• Serve as the Information System Security Manager for assigned systems within Federal and DoD research environments.
• Oversee and manage system security posture, ensuring compliance with applicable DoD cybersecurity policies and NIST guidance.
• Lead vulnerability management efforts, including identification, prioritization, mitigation tracking, and remediation validation.
• Conduct and review risk assessments to evaluate system security controls and residual risk.
• Support system authorization activities and maintain required security documentation.
• Guide incident response coordination, including containment, root cause analysis, corrective actions, and reporting.
• Evaluate emerging threats, malware trends, and evolving attack vectors impacting research and operational systems.
• Oversee development and implementation of protective controls including firewalls, endpoint security tools, and monitoring solutions.
• Draft and review security documentation, assessment reports, and technical findings for senior stakeholders.
• Support acquisition reviews, technical evaluations, and proposal assessments related to secure research and development initiatives.
• Track performance metrics, risk indicators, and project progress tied to cybersecurity initiatives.
• Communicate complex cybersecurity findings clearly to technical and non-technical leadership.

What We Are Looking For

Required

• Minimum of seven years of relevant experience in cybersecurity, engineering, scientific, or technical disciplines supporting DoD or Federal environments.
• Demonstrated experience identifying and addressing vulnerabilities in enterprise systems.
• Strong knowledge of security testing methodologies, threat detection, mitigation strategies, and risk management frameworks.
• Experience supporting incident response, vulnerability management, and system security oversight.
• Experience evaluating both qualitative and quantitative data to assess security posture and risk trends.
• Strong technical writing skills with the ability to clearly explain complex security issues.
• Understanding of DoD and Federal research and development processes, acquisitions, and project lifecycle management.

Certification Requirement

• DoD 8570 certifications such as CCNA-Security, CySA+, GICSP, GSEC, Security+ CE, CND, or SSCP.
• DLA Approved certifications may include AWS Certified Solutions Architect Associate (SAA-003 exam), AWS Certified Solutions Architect Professional, AWS Certified Security Specialty, Microsoft Certified Architect for SQL Server, or Microsoft Certified: Azure Administrator Associate (AZ-104 exam).

Eligibility Requirements

Active Secret clearance required.

Must meet IAT II certification requirements.

This role is restricted to U.S. person(s) as defined under the Immigration and Naturalization Act, 8 U.S.C. 1324b(a)(3).

Location

Onsite at Fort Belvoir, Virginia.

Internal Government Agency Title

Internal Government Agency Title will be Cybersecurity Specialist

What We Offer

• Competitive salary
• Comprehensive benefits
• 401(k)
• Bonus and profit sharing
• Flexible hours
• Education reimbursement
• Generous paid time off

Pay Range

$165,000 - $180,000 per year

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