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Windows System Administrator

Job in San Antonio, Bexar County, Texas, 78208, USA
Listing for: General Dynamics Information Technology
Full Time position
Listed on 2026-01-04
Job specializations:
  • IT/Tech
    Systems Administrator, IT Support
Job Description & How to Apply Below

Job Title

Windows System Administrator

Job Overview

Responsible for supporting the acquisition, installation, configuration, and maintenance of Microsoft products used by the supported organization. This also includes helping architect and analyze the integration of Windows Operating Systems and Office productivity and collaboration suites within the customer network models. Requires active participation in decisions about buying hardware or software to deploy, maintain, upgrade, and operate the organization’s daily operating environment.

Works on complex problems where analysis of the situation requires in‑depth evaluation and analysis of various factors involving the interoperability of Windows OS and productivity applications. Provides work leadership and training to lower‑level administrators regarding supported products. Requires expert knowledge of how Microsoft software interacts within the customer LAN/WAN systems, networks, and other security applications. The administrator in this position will support activities within Special Access Programs (SAPs) supporting Department of Defense (DoD) agencies such as HQ Air Force, Office of the Secretary of Defense (OSD), and Military Compartments efforts.

The position will provide day‑to‑day support for Collateral, Sensitive Compartmented Information (SCI), and SAP activities.

Responsibilities
  • Installing and maintaining Windows Server and desktop operating systems and related COTS product systems support
  • Building and hardening Windows servers and establishing configuration baselines
  • Implementing, maintaining and updating a Windows infrastructure including domain controllers
  • Working in an organization with complex, intertwined systems and data flows
  • Managing domain account management via Active Directory and LDAP
  • Managing a large, complex server environment, including multiple versions of OS
  • Using Microsoft System Center Operations Manager (SCOM) and Access Control Service (ACS)
  • Using Microsoft Exchange and Microsoft Outlook
  • Monitoring system performance to support capacity planning
  • Implementing and monitoring system backups and disaster recovery
  • Supporting architecture design analysis for technology refresh
  • Planning, implementing, evaluating and effectively communicating complex system problem identification and resolution courses of action
  • Maintaining awareness of and participating in upgrading and patching operating systems and COTS cybersecurity software/tools
  • Strong scripting experience, especially Power Shell, VB, etc., to develop, test, and deploy scripts for automating tasks
  • Researching and resolving operating system problems efficiently and accurately while adhering to organizational standards and practices
  • Troubleshooting operating system problems and collaborating with other teams (e.g., application development, network) to resolve issues across the organization
  • Planning, testing, installing, integrating, and maintaining new and upgraded versions of operating systems. Managing operating system life cycles
  • Applying all appropriate security and firmware patches promptly and assisting in creating, maintaining, and adhering to the organization’s patch management plans
  • Maintaining and updating documentation on the operating system configuration and all other areas of responsibility
  • Providing user product support and troubleshooting (workstation, account, and system)
  • Providing support for examination, testing, and deployment of operating systems, and software patches/updates
  • Familiarity with DoD policy as it applies to implementing and executing system and network administration
  • Must be able to regularly lift up to 50 lbs.
Skills

Microsoft Exchange Server, Microsoft Power Shell, Systems Administrator, Windows System Administration

Experience

5+ years working as a Windows system administrator.

Education
  • Bachelor’s degree in Computer Science, Information Technology OR Associate’s degree in a related area + 2 years’ experience OR equivalent experience (4 years)
Certifications
  • IAT Level II (Security+ CE, CCNA Security, etc.)
  • Microsoft Certified Solutions Expert (MCSE) or Microsoft Certified IT Professional (MCITP) certifications (preferred)
Clearance Level Must Currently…
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