Information Systems Security Manager - TS/SCI w/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 Manager 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

• Manage Analysts engaged in ensuring the safety of information systems assets and protection of systems from intentional or inadvertent access or destruction.
• Provide support for a program, organization, systems or enclaves. Support the Agency RMF Workflow and Processes by proposing, coordinating, implementing and enforcing information system security policies, instructions, standards, and methodologies.
• Coordinate with the Data Custodian, Project Owner, and ISSM to identify the types of information processed, assign the appropriate security categorizations to the information systems, determine the information security and privacy impacts, and manage information security and privacy risk. Document the controls in the information security and privacy plan (or equivalent document) to ensure implemented controls meet or exceed the minimal controls defined by CISO guidance.
• Maintain current system information in ServiceNow (e.g., POCs, artifacts) to support organizational requirements and processes (e.g., communication, contingency planning, training, data calls)
• Evaluate the impact of network and system changes using RMF processes.
• Ensure anomalies identified under the Sponsor's Information Security Continuous Monitoring activities are addressed and remediated in a manner that commensurate with the risks posed to the system from the anomalies.
• Submit recommendations to the stakeholders for system configuration deviations from the required baseline.
• Develop and maintain a system security plan (SSP)
• 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 Sponsor

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 Experience : 8+ yrs
• Required Technical Skills:
• Experience with ServiceNow, Continuum 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 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 as a cert qualification
• Location : McLean, 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_2025Alumni

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