Security Incident Analyst (SIA) - TS/SCI with Polygraph

General Dynamics Information Technology
Norfolk, VA
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

Own your career as a Security Incident Analyst (SIA) at GDIT. Here, you’ll have the opportunity to build strong lines of cyber defense using cutting-edge technologies. Your work in cyber security at GDIT will have an impact on securing our clients’ missions and ensuring we anticipate the threats of tomorrow. 

At GDIT, people are our differentiator. The Security Incident Analyst (SIA) is responsible for the mitigation of security incidents on DIA information systems. The SIA investigates incidents involving information technology (IT) assets and DIA personnel to the DIA Computer Network Defense Center (DCNDC) and Information Systems Security Managers (ISSM) for situational awareness and tracking purposes. SIA then manages, coordinates, and reports mitigation actions in order to sanitize agency assets prior to resolving cases.

HOW A SECURITY INCIDENT ANALYST WILL MAKE AN IMPACT 

  • Manage network computer and system security incidents relating to data spills, misclassifications, unauthorized software downloads, system misconfigurations, cross-domain violations, etc.

  • Perform incident investigation and analysis to research and gather information for mitigation coordination.

  • Utilize cyber and case management tools.

  • Prepare case evidence and incident reports.

  • Provide training and guidance to less-experienced technical staff members, and customer education to network users.

  • Work on special projects as assigned.

WHAT YOU’LL NEED TO SUCCEED: 

  • Bachelor's Degree and 8+ years of relevant experience, equivalent combinations of education, certifications, and experience will be considered.

  • DoD Approved Baseline 8570 IAT level III (CASP, CISSP, CISA, etc.) certification is required prior to start date.

  • DoD Approved Baseline 8570 CSSP Auditor (CEH, CySA, CISA, etc.) certification is required prior to start date.

  • Security Clearance Level: TS/SCI clearance and ability to obtain and maintain a Polygraph. 

  • Preferred Skills: Splunk, Proofpoint, Fidelis, Solera, Windows, and Linux Operating Systems. 


Location: On Customer Site 

  • Bolling AFB, Washington D.C. 

  • Reston, VA 

  • Colorado Springs, CO 

  • Norfolk, VA 

  • Riverdale, MD 

  • Charlottesville, VA 

  • Pearl Harbor, HI 

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

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

Posted 2025-11-18

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