Sr. Systems Administrator -TS/SCI w/ POLY Required

Clearance Level
Top Secret SCI + Polygraph
Systems Administration
McLean, Virginia

REQ#: RQ89990

Travel Required: Less than 10%
Public Trust: None
Requisition Type: Regular


The successful candidate is responsible for effective provisioning, installation/configuration, operation, and maintenance of systems hardware and software and related infrastructure.  This individual participates in the whole process lifecycle from technical research to enable continuing innovation within the infrastructure through to application/product delivery.  This individual ensures that system hardware, operating systems, and related procedures adhere to organizational values, enabling staff, volunteers, and Partners.

The successful candidate will be managing the functionality and efficiency of a group of computers running Windows operating systems.  They will manage a Windows domain, using Active Directory, Group Policy, McAfee ePolicy Orchestrator, SCCM, Powershell, VMware, and Centrify.


Manages the functionality and efficiency of a group of computers running Windows operating systems Maintains the integrity and security of servers and systems through approval and processing of patches Interact with users and evaluates vendor products Research and recommends hardware and software, coordinates installation and provides backup recovery Monitors policies and standards for allocation related to the use of computing resources May program in an administrative language Leverage scripting and system automation tools Oversees implementation of testing strategies and documentation of results Provides advice and training to end-users Maintains current knowledge of relevant technologies as assigned Responsibilities sometimes require working evenings and weekends, sometimes with little advanced notice Uses VMware to build and maintain virtual machines Maintains systems documentation


Bachelor’s Degree in Computer Science or related technical discipline, or the equivalent combination of education, technical certifications or training, or work experience


Minimum five (5) years of related systems engineering experience in systems administration and analysis

COVID-19 Vaccination Requirement: To protect the health and safety of its employees and to comply with customer requirements, GDIT may require employees in certain positions to be fully vaccinated against COVID-19. Vaccination requirements will depend on the status of the federal contractor mandate and customer site requirements.

We are GDIT. The people supporting some of the most complex government, defense, and intelligence projects across the country. We deliver. Bringing the expertise needed to understand and advance critical missions. We transform. Shifting the ways clients invest in, integrate, and innovate technology solutions. We ensure today is safe and tomorrow is smarter. We are there. On the ground, beside our clients, in the lab, and everywhere in between. Offering the technology transformations, strategy, and mission services needed to get the job done.

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.