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# WINDOWS SERVER ADMINISTRATOR

- **Company:** Mantech International Corporation
- **Location:** Quantico, VA, United States
- **Experience:** Experienced
- **Contract:** Permanent contract
- **Skills:** Active Directory, Domain Controllers, Backup Devices, Configuration Management, Complex Networks, Cyber Security, Information Systems, Data Integrity, Disaster Recovery, VMware ESX Servers, Hyper-V, Information Systems Security Architecture Professional, System Center Configuration Manager, Windows Servers, Data Streaming, VMware VSphere, Nessus, Wsus
- **Published:** August 3, 2026
- **Apply:** https://find.jobs/jobs-near-me/apply/ats-redirect/?id=2908240332-2

## About the Role

* Bachelor's degree and at least 2 years in Information Systems Security. A total of 8 years' experience required without a degree.
 * Demonstrated experience navigating the Sponsor's accreditation process and ICD 503 standards, including A&A Body of Evidence (BOE) creation.
 * Proven experience meeting security requirements in the Sponsor's environment or similar enterprise environments.
 * Experience collaborating across large teams to drive security initiatives and manage complex, integrated system data flows.
 * Experience with complex network inventorying and network documentation (compliance, configuration management, patching, centralized authentication).
 * Strong capability to create, maintain, and communicate technical, network, and security documentation.

Preferred Qualifications:

 * Certified Information Systems Security Professional (CISSP) certification.
 * Experience with the Sponsor's primary cyber risk and compliance automation tools.
 * Proactive self-starter with excellent interpersonal skills, capable of working across teams and driving organizational change.

Clearance Requirements:

 * Must have an active current TS/SCI security clearance

Physical Requirements:

 * Must be able and willing to perform occasional manual labor and warehouse duties, with the ability to lift up to 50 pounds.
 * Must be able to remain in a stationary position 50% of the time.

## Description

MANTECH seeks a motivated, career and customer-oriented WINDOWS SERVER ADMINISTRATOR to join our team in QUANTICO, VA., * Installing, configuring, and maintaining Windows Server operating systems (2016, 2019, 2022) while monitoring server performance and optimizing resource utilization.

 * Managing Microsoft Active Directory Domain Services (AD DS), including domain controllers, user/group management, DNS, DHCP, and complex Group Policy Object (GPO) creation and deployment.
 * Administering virtualized server environments utilizing VMware vSphere/ESXi or Microsoft Hyper-V to ensure scalable and resilient infrastructure.
 * Planning and executing automated patching, software updates, and OS deployments using Microsoft Endpoint Configuration Manager (MECM/SCCM) and Windows Server Update Services (WSUS).
 * Hardening Windows servers in strict accordance with Defense Information Systems Agency (DISA) Security Technical Implementation Guides (STIGs) and remediating vulnerabilities identified by ACAS/Nessus scans.
 * Maintaining enterprise backup solutions, ensuring data integrity, and participating in Disaster Recovery (DR) and Continuity of Operations (COOP) planning and testing.


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