Information Systems Security Manager - TS/SCI with Polygraph

Public Trust: None

Requisition Type: Regular

Your Impact

Own your opportunity to serve as a critical component of our nation’s safety and security. Make an impact by using your expertise to protect our country from threats.

Job Description

Seize your opportunity to make a personal impact as an Information Systems Security Management professional 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 Information Systems Security Manager (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!

HOW AN ISSM WILL MAKE AN IMPACT

• 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
• 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&Ms
• Ensure compliance with NIST 800-53 controls and relevant cybersecurity standards
• 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
• Require strong documentation skills to create and update policies, process documentation and procedures
• Conduct internal audits to ensure compliance with RMF requirements
• Demonstrated experience with RMF, ICD 503, CNSSI 1253, NIST SP 800-53/53A, and STIGs

WHAT YOU’LL NEED TO SUCCEED:

• Education : Bachelors (Computer engineering, Computer Science, Electrical Engineering, Information systems, Information Technology, Cybersecurity, or a closely related discipline)
• Required Certification: CompTIA Advanced Security Practitioner (CASP+)
• Required Experience : 8+ yrs
• Required Technical Skills:
• Require strong documentation skills to create and update policies, process documentation and procedures
• Experience with ServiceNow, Tenable, and other SCAP Compliant tools
• Demonstrated experience with RMF, ICD 503, CNSSI 1253, NIST SP 800-53/53A, and STIGs
• Security Clearance Level : TS/SCI with active polygraph
• Preferred Certifications:
• Certified Information Systems Security Professional (CISSP)
• CompTIA Security+
• Certified Information Systems auditor (CISA)
• Certified Information Security Manager (CISM)
• AWS Solutions Architect Associate or Professional
• Location : Tysons Corner, VA - On Customer Site

GDIT IS YOUR PLACE:

• 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 you can learn from
• Rest and recharge with paid vacation and holidays

#WeAreGDIT
#JET
#GDITEnhanced2026
#VA_2026Alumni

Work Requirements

Years of Experience

8 + years of related experience

* may vary based on technical training, certification(s), or degree

Certification

Travel Required

Less than 10%

Citizenship

U.S. Citizenship Required