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Job Title: Information Systems Security Officer (ISSO) - TS/SCI with Polygraph
Company Name: General Dynamics IT
Location: Elkridge, MD
Position Type: Full Time
Post Date: 02/26/2026
Expire Date: 05/25/2026
Job Categories: Engineering, Information Technology
Job Description
Information Systems Security Officer (ISSO) - TS/SCI with Polygraph

*Position is currently located in Elkridge, MD and will relocate to another site in the National Capital Region in 2026.*

As an Information System Security Officer (ISSO) at GDIT,you'llbe a key part of a focused team dedicated to securing our nations most critical systems. We need a detail-oriented professional with a strong technical background who can not only manage security policies but also get hands-on with the systems themselves.You'llbe the one translating complex security requirements into real-world solutions and ensuring our infrastructure is both compliant and resilient. Ifyou'reready to make a tangible impact by applying your skills to a mission-critical environment, this is the role for you.

HOW AN INFORMATION SYSTEM SECURITY OFFICER WILL MAKE AN IMPACT

  • Serve as a principal advisor on all matters, technical and otherwise, involving the security of Information Technology Division information systems.

  • Implement Risk Management Framework (RMF)in accordance withNIST SP 800-37.Ensure all security controls are robust and effective by independently conducting security control assessments, gathering comprehensive evidence, and ensuring systems are compliant with all standards.You'lltake ownership of the security package, ensuring all NIST SP 800-53 controls are applied.

  • Independentlyidentifysecurity vulnerabilitiesand propose alternative solutions that still achieve the required security intent, ensuring all NIST SP 800-53.

  • Directly assess system configurations and ensure compliance with security baselines like Security Technical Implementation Guides (STIGs).

  • Create, edit, andmaintaina wide range of security documentation from scratch, including System Security Plans (SSPs), and Plans of Actions and Milestones (POA&Ms).

  • Collaborate directly with engineering and development teams to implement your security designs and troubleshoot complex issues.

  • Apply specific functional,workingand general industry knowledge.

  • Develop or contribute to solutions to a variety of problems of moderate scope and complexity.

  • Work independently with some guidance. May review or guide activities of more junior employees.

  • Provide leadership briefs, reports, and supporting documentationregardingthe status of applicable systems and their progression through the clients RMF process.

  • Ensure all network, system, application, or service users have the requisite security clearances, authorization, need-to-know, and security responsibility awareness prior to granting access to ITD information systems.

  • Research and remediate security vulnerability findings for applicable systems within the ITD as documented in the Security Assessment Report (SAR) and its Plan of Actions and Milestones (POA&M).

  • Plan, implement,upgradeandmonitorsecurity measures for the protection of computer networks and information.

  • Ensureappropriate securitycontrols are in place that safeguard digital files and vital electronic infrastructure.

  • Oversee and support assigned IT environments, ensuring continuous improvement and rapid problem resolution.

WHAT YOULL NEED TO SUCCEED:

  • Required Education and Experience: Technical Training, Certification(s)or Degree + 8 years

  • Certification: 8570.01-M at the Information Assurance Technical(IAT) Level II

  • Security Clearance Level: TS/SCI clearance and ability to obtain andmaintaina CI Polygraph

  • Required Skills:Strong writtenand verbal communication, strong analytical, and critical thinking skills

  • Location: On Customer Site

GDIT IS YOUR PLACE
At GDIT, the mission is our purpose, and our people are at the center of everything we do.
Growth: AI-powered career tool that identifies career steps and learning opportunities
Support: An internal mobility team focused on helping you achieve your career goals
Rewards: Comprehensive benefits and wellness packages, 401K with company match, and competitive pay and paid time off*
Community: Award-winning culture of innovation and a military-friendly workplace

#MD_2026Alumn

#GDITEnhanced2026

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Contact Information
Company Name: General Dynamics IT
Website:https://www.gdit.com/careers/job/78b247b55/information-systems-security-officer-isso-tssci-with-polygraph/?source=AutoAppend_HBCU
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