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GD

General Dynamics Information Technology

via Workday

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

Washington, District of Columbia
full-time
Posted 11/17/2025
Direct Apply
Key Skills:
Case Management
Cybersecurity
Incident Analysis
Security Incident Response
Splunk
Proofpoint
Fidelis
Solera
Windows Operating System
Linux Operating System

Compensation

Salary Range

$140K - 173K a year

Responsibilities

Manage and investigate security incidents on DIA information systems, coordinate mitigation actions, and prepare incident reports.

Requirements

Bachelor's degree, 8+ years of relevant experience, DoD 8570 IAT level III and CSSP Auditor certifications, TS/SCI clearance with polygraph, and cybersecurity skills.

Full Description

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret/SCI Clearance Level Must Be Able to Obtain: Top Secret SCI + Polygraph Public Trust/Other Required: None Job Family: Cyber and IT Risk Management Job Qualifications: Skills: Case Management, Cybersecurity, Incident Analysis, Security Incident Response Certifications: None Experience: 8 + 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 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 The likely salary range for this position is $139,984 - $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. Scheduled Weekly Hours: 40 Travel Required: Less than 10% Telecommuting Options: Onsite Work Location: USA DC Washington Additional Work Locations: USA CO Colorado Springs, USA HI Pearl Harbor, USA MD Riverdale, USA VA Charlottesville, USA VA Norfolk, USA VA Reston Total Rewards at GDIT: 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 50 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. Join our Talent Community to stay up to date on our career opportunities and events at gdit.com/tc. Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans Join our 30,000 everyday heroes. 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. For more information about GDIT's Privacy Policy, click here: https://www.gdit.com/privacy-policy/notices/

This job posting was last updated on 11/24/2025

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