Information Systems Security Engineer (ISSE) - TS/SCI with Polygraph
General Dynamics Information Technology
Full-time
other-general
Location
Herndon, VA, United States
Posted
July 20, 2026
Job Description
**Req ID:** RQ223703
**Type of Requisition:** Regular
**Clearance Level Must Be Able to Obtain:** None
**Public Trust/Other Required:** None
**Job Family:** Cyber and IT Risk Management
**Skills:**
Cloud Security,Greenlight Oracle Access Violation Management,Mitigation,Xacta (Platform)
**Experience:**
10 + years of related experience
**US Citizenship Required:**
Yes
**Job Description:**
A career as an ISSE at GDIT means owning every opportunity to help support and advance our clients’ missions. At GDIT, cyber security is embedded into every aspect of what we do and we’re constantly evolving our cyber solutions to overcome our clients’ biggest challenges.
At GDIT, people are our differentiator. As an ISSE, you will help ensure today is safe and tomorrow is smarter. We are seeking an experienced ISSE capable of working within Xacta, Greenlight, Rapid7 and assigned onsite Information System Security Managers to maintain and ren...
**Type of Requisition:** Regular
**Clearance Level Must Be Able to Obtain:** None
**Public Trust/Other Required:** None
**Job Family:** Cyber and IT Risk Management
**Skills:**
Cloud Security,Greenlight Oracle Access Violation Management,Mitigation,Xacta (Platform)
**Experience:**
10 + years of related experience
**US Citizenship Required:**
Yes
**Job Description:**
A career as an ISSE at GDIT means owning every opportunity to help support and advance our clients’ missions. At GDIT, cyber security is embedded into every aspect of what we do and we’re constantly evolving our cyber solutions to overcome our clients’ biggest challenges.
At GDIT, people are our differentiator. As an ISSE, you will help ensure today is safe and tomorrow is smarter. We are seeking an experienced ISSE capable of working within Xacta, Greenlight, Rapid7 and assigned onsite Information System Security Managers to maintain and ren...