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Security Incident Analyst (SIA) - TS/SCI with Polygraph
Security Incident Analyst (SIA) - TS/SCI with Polygraph-March 2024
Norfolk
Mar 29, 2026
About Security Incident Analyst (SIA) - TS/SCI with Polygraph

Req ID: RQ182071

Type of Requisition: Regular

Clearance Level Must Be Able to Obtain: Top Secret SCI + Polygraph

Public Trust/Other Required: None

Job Family: Cyber Security

Skills:

Cybersecurity,ISSO,Security Audit,Security Policies,Splunk

Experience:

10 + years of related experience

US Citizenship Required:

Yes

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 10+ 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

The likely salary range for this position is $140,899 - $172,500. This is not, however, a guarantee of compensation or salary. Rather, salary will be set based on experience, geographic location and possibly contractual requirements and could fall outside of this range.

Our benefits package for all US-based employees includes a variety of medical plan options, some with Health Savings Accounts, dental plan options, a vision plan, and a 401(k) plan offering the ability to contribute both pre and post-tax dollars up to the IRS annual limits and receive a company match. To encourage work/life balance, GDIT offers employees full flex work weeks where possible and a variety of paid time off plans, including vacation, sick and personal time, holidays, paid parental, military, bereavement and jury duty leave. To ensure our employees are able to protect their income, other offerings such as short and long-term disability benefits, life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance are provided or available. We regularly review our Total Rewards package to ensure our offerings are competitive and reflect what our employees have told us they value most.

We are GDIT. A global technology and professional services company that delivers consulting, technology and mission services to every major agency across the U.S. government, defense and intelligence community. Our 30,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. We operate across 30 countries worldwide, offering leading capabilities in digital modernization, AI/ML, Cloud, Cyber and application development. Together with our clients, we strive to create a safer, smarter world by harnessing the power of deep expertise and advanced technology.

We connect people with the most impactful client missions, creating an unparalleled work experience that allows them to see their impact every day. We create opportunities for our people to lead and learn simultaneously. From securing our nation’s most sensitive systems, to enabling digital transformation and cloud adoption, our people are the ones who make change real.

GDIT is an Equal Opportunity/Affirmative Action employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status, or any other protected class.

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