Lead Windows Systems Administrator

A Praxis Opportunity

Praxis Engineering, a GDIT company, provides cutting-edge technology capabilities and unmatched expertise to deliver mission-critical solutions that drive impact and support customer needs.

Clearance Level
Top Secret SCI + Polygraph
Category
IT Infrastructure and Operations
Location
Chantilly, Virginia
(Onsite Workplace)
Key Skills For Success

Domains

Microsoft Windows Server Infrastructure

Microsoft Windows System Administration

REQ#: PRX25822
Public Trust: None
Requisition Type: Regular
Your Impact

Own your opportunity to serve as a critical component of our nation’s safety and security. Make an impact by using your expertise to protect our country from threats.

Job Description

Lead Windows Systems Administrator (SME) We are seeking an accomplished Lead Windows Systems Administrator to oversee the design, operations, and maintenance of a mission-critical Windows infrastructure that supports analysts and scientists. This senior leadership role will shape the stability, security, and scalability of our Windows environment—spanning desktops, servers, and integrated applications—while guiding a high-performing team of system administrators. If you are a hands-on technical leader with a deep Windows expertise and a passion for solving complex challenges, this is your opportunity to make a significant impact. What you will be doing: Leading and managing the Windows Systems Administration team, ensuring smooth day-to-day operations and prioritization of tasks. Designing, operating, and maintaining Windows infrastructure, including servers, virtual desktops, and enterprise applications. Configuring and managing domains, Active Directory, Group Policies, and access controls. Driving automation efforts through scripting to deliver consistent provisioning, configuration management, and compliance. Overseeing patch management, testing, and deployment to maintain a secure, stable environment with minimal disruption. Managing incident resolution: analyzing issues, identifying root causes, implementing fixes, and documenting closures. Tracking and managing incident queues, ensuring timely responses and identifying recurring trends requiring deeper engineering solutions. Integrating and supporting COTS and GOTS applications on the Windows platform to meet evolving user needs. Collaborating with network engineers, security teams, and application owners to deliver robust and accredited environments. What you need: Leadership Experience: Proven ability to lead and manage a team of 5+ administrators for 10+ years. Technical Expertise: Advanced knowledge of Windows Workstation and Server administration. Expert experience with Citrix StoreFront, Active Directory, and Group Policy management. Hands-on experience with server roles (file, web, application, and domain controllers). Skilled in virtualized environments (VMWare, Nutanix, etc.). Strong understanding of networking fundamentals and collaboration with network teams. Proficiency in deploying, monitoring, patching, and supporting enterprise applications. Experience with data storage and management solutions. Security & Compliance: History of working closely with security teams to accredit systems for operational readiness. Additional Skills (Preferred): Linux OS knowledge. Experience with Tanium. Education & Experience: M.S. degree with 9+ years of professional experience, OR B.S. degree with 12+ years of professional experience, OR Relevant certification with 9+ years of professional experience, OR No degree with 15+ years of professional experience. Mindset: Adaptable to fast-paced environments, proactive problem-solver, and strong communicator. #praxisjobs

Work Requirements
Years of Experience

10 + years of related experience

* may vary based on technical training, certification(s), or degree

Certification

Travel Required

None

Citizenship

U.S. Citizenship Required

Salary and Benefit Information

The likely salary range for this position is $200,367 - $271,085. 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.
View information about benefits and our total rewards program.

About Our Work

We are GDIT. A global technology and professional services company that delivers 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 over 50 countries worldwide, offering leading capabilities in digital modernization, AI/ML, cloud, cyber and application development. Together with our customers, 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