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Senior System Administrator - TS/SCI with Polygraph

General Dynamics Information Technology
Location 📍 Reston, United States
Posted 📅 June 13, 2026
Work Type ⏰ Full-time

Position Overview

**Req ID:** RQ219183
**Type of Requisition:** Regular
**Clearance Level Must Be Able to Obtain:** Top Secret SCI + Polygraph
**Public Trust/Other Required:** None
**Job Family:** IT Infrastructure and Operations
**Skills:**
Computer Servers,Linux,Local Area Network (LAN),Wide Area Network (WAN)
**Certifications:**
CompTIA - Security+ - CompTIA - CompTIA
**Experience:**
7 + years of related experience
**US Citizenship Required:**
Yes

**Job Description:**

**Senior** **Systems Administrator**

Transform technology into opportunity as a Senior Systems Administrator with GDIT. A career in enterprise IT means connecting and enhancing the systems that matter most. At GDIT you’ll be at the forefront of innovation and play a meaningful part in improving how agencies operate.

**The job duties of the Sr. System** **s** **Administrator are as follows:**

+ Plans, designs, and implements infrastructure changes...

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Job Details

Employment Type
Full-time
📊
Category
other-general
🏠
Work Arrangement
On-site
📍
Location
Reston, United States