Information Systems Security Manager; ISSM; TS/SCI w/Polygraph
Listed on 2026-09-12
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IT/Tech
Cybersecurity, Information Security & Data Protection, IT Consultant
Type of Requisition:
Regular
Clearance Level Must Currently Possess:Top Secret SCI + Polygraph
Clearance Level Must Be Able to Obtain:Top Secret SCI + Polygraph
Public Trust/OtherRequired:
None
Job Family:Cyber and IT Risk Management
Job Qualifications:Skills:
RMF, Security Technical Implementation Guides (STIGs), Xacta (Platform)
Certifications:None
Experience:4 + years of related experience
US CitizenshipRequired:
Yes
Job Description:Seize your opportunity to make a personal impact as an Information Systems Security Manager (ISSM) supporting customer activities. GDIT is your place to make meaningful contributions to challenging projects and grow a rewarding career.
At GDIT, people are our differentiator. As an ISSM, you will help ensure today is safe and tomorrow is smarter. Our work depends on an ISSM joining our highly skilled team to be a premier provider of cyber security services to the customer. We provide consummate cyber security risk management “as a service” platform across multiple fabrics and centers. We have responsibility to ensure operational IT capabilities provide the client with necessary timeliness, accuracy and security of information demanded from all our highly professional roles.
Be the change, lead our change – join us!
Support customer RMF workflow and processes by proposing, coordinating, implementing and enforcing information system security policies, instructions, standards, and methodologies
Review and approve customer requests related to accesses, devices, and other authorizations
Maintain current system information in Service Now to support organizational requirements and processes Evaluate the impact of network and system changes using RMF processes and approve the changes
Manage multiple projects throughout Authorization and Accreditation (A&A) process from concept to Authority to Operate (ATO)
Coordinate with system stakeholders on mitigating system vulnerabilities outlined in POA&M
Submit recommendations to stakeholders for system configuration deviations from the required baseline
Conduct periodic reviews to ensure compliance with SSP
Ensure configuration management for security-relevant IS software, hardware and firmware is maintained and documented
Ensure system recovery processes are monitored to ensure security features and procedures are properly restored
Ensure all IS security-related documentation is current and accessible to properly authorized individuals
Formally notify the appropriate individuals when changes occur that might affect authorization
Participate in governance and project reviews identified by the customer
Education :
Bachelors (Computer engineering, Computer Science, Electrical Engineering, Information systems, Information Technology, Cybersecurity, or a closely related discipline)Required Certification: Security+
Required Experience : 4+ yrs
Required Technical
Skills:Demonstrated experience with RMF, ICD 503, CNSSI 1253, NIST SP 800-53/53A, and STIGs
Experience with Service Now, Tenable, and other SCAP Compliant tools
Require strong documentation skills to create and update policies, process documentation and procedures
Security Clearance Level : TS/SCI with active polygraph
Desired
Certifications:Certified Ethical Hacker 10 (CEH)
Certified Information Systems Security Professional (CISSP)
Certified Information Systems auditor (CISA)
NIST Cybersecurity Framework (NCSF)
AWS Solutions Architect Associate or Professional
Location :
McLean, VA - On Customer Site
401K with company match
Comprehensive health and wellness packages
Internal mobility team dedicated to helping you own your career
Professional growth opportunities including paid education and certifications
Cutting-edge technology…
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