System Administrator, Senior Principal
General Dynamics Information TechnologyRole Overview
General Dynamics Information Technology is hiring a System Administrator, Senior Principal. This is a full-time role in Fort Belvoir. Part of General Dynamics Information Technology's Lifecycle hiring, posted 5 days ago. Full responsibilities, required qualifications, and the apply link are listed in the description below.
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Job Description
A Sr Principal Systems Administrator is a senior-level IT professional responsible for leading the design, implementation, and ongoing management of the Defense Threat Reduction Agency’s (DTRAs) core systems, infrastructure, and security frameworks. This position requires deep technical expertise, leadership influence, and the ability to drive operational excellence across complex environments.
The Sr. Principal Systems Administrator plays a critical role in managing and optimizing this environment. This senior-level position involves leading system administration efforts, maintaining system performance, and ensuring the security and integrity of data across various platforms. The ideal candidate brings extensive technical expertise and leadership experience to drive projects that enhance efficiency and effectiveness. This job description outlines the key responsibilities, required qualifications, and expectations associated with the role of a Sr. Principal Systems Administrator.
WHAT YOU’LL NEED TO SUCCEED
The ideal candidate will possess deep expertise in Windows environments, infrastructure automation, database management, and data analysis to drive operational efficiency.
- Deep hands-on experience with Active Directory administration, certificate lifecycle management, and enterprise authentication protocols.
- Strong experience administering, configuring, and managing Virtual Machines in VMware or Microsoft Hyper-V hypervisors.
- Solid proficiency in SQL database management, including writing queries and performing general database administration. Experience managing and maintaining File Server Resource Manager (FSRM) and enterprise file systems.
- Demonstrated ability to extract and synthesize data from Active Directory, SQL, and Microsoft Configuration Manager (MCM) databases, SQL, and general CSV manipulation for system forensics and data analysis.
- Remotely manage distributed servers, switches, and workstations within each local site by a central location where possible.
- Plan, coordinate, and implement network security measures through manual configuration, installation of patches, or the application of scripts to protect data, software, and hardware.
- Mitigate vulnerability security findings on workstations and servers and coordinate the resolution between security and local on-site teams.
- Troubleshoot server and workstation failures related to software deployments, and Windows operating system updates.
- Maintain all servers within the configuration baselines and all STIGs and accurately configure and apply patches to all systems.
- Participate in technical exchanges as required.
- Provide technical and operational input to Change Review activities.
- Review existing documentation for the server, services, and maintenance processes and procedures, and provide recommendations for improvements/changes.
- Assist network and systems security personnel in IA incident response.
Bring your technology expertise and drive for innovation to GDIT.
- Education: Bachelor’s degree in computer science, Information Technology, or a related field.
- Experience: Minimum 8 years of systems administration experience
- Technical skills:
- Expertise in Windows/Linux server management, virtualization, and cloud platforms (e.g., Microsoft Azure, AWS)
- Proficiency in scripting (PowerShell, Bash), automation tools, and infrastructure-as-code (IaC) practices.
- Security clearance level: TS
- US citizenship required
GDIT IS YOUR PLACE
At GDIT, the mission is our purpose, and our people are at the center of everything we do.
● Growth: AI-powered career tool that identifies career steps and learning opportunities
● Support: An internal mobility team focused on helping you achieve your career goals
● Rewards: Comprehensive benefits and wellness packages, 401K with company match, and competitive pay and paid time off
● Community: Award-winning culture of innovation and a military-friendly workplace
OWN YOUR OPPORTUNITY
Explore an enterprise IT career at GDIT and you’ll find endless opportunities to grow alongside colleagues who share your desire to drive operations forward.
#gditpriority
#armajobs
Frequently Asked Questions
How do I apply for the System Administrator, Senior Principal position at General Dynamics Information Technology?
Use the Apply button above to submit your application directly to General Dynamics Information Technology. Most applications take less than 5 minutes if your resume and contact details are ready, and you'll be routed to the employer's official application system to finish.
Where is the System Administrator, Senior Principal position at General Dynamics Information Technology located?
This position is based in Fort Belvoir. General Dynamics Information Technology has not indicated remote or hybrid options for this role, so candidates should plan for on-site work.
What does a System Administrator, Senior Principal at General Dynamics Information Technology earn?
General Dynamics Information Technology has not disclosed a salary range in this posting. Many employers share specifics later in the interview process; you can also ask during a recruiter screen if compensation transparency is important to you.
When was the System Administrator, Senior Principal role at General Dynamics Information Technology posted?
This role was posted on June 16, 2026 (5 days ago). It's still listed as actively hiring; we re-confirm openings against the source system multiple times per day and remove closed roles.
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