Windows Systems Administrator

Job
Location: GROTON, CT, United States
Date Posted: Jan 8, 2026
Category: Information Technology
Subcategory: Sys Administrator
Schedule: Full-time
Shift: Day Job
Travel: No
Minimum

Clearance Required:

Interim Secret
Clearance Level Must Be Able to Obtain: TS/SCI
Potential for Remote Work: On-Site
Benefits:

SAIC is hiring a Windows System Administrator to be located in Groton, CT
. The successful candidate will be the primary technical resource for Windows Systems Administration. This position requires the ability to assist with the architectural, engineering, administration of Windows infrastructure, as well as participate in the change process and incident response processes.

• Desktop support of Windows 11 workstations in a Microsoft Active Directory environment.
• Microsoft Windows Server 2019, 2022, and 2025 support of virtual and physical servers.
• Management of VMware virtual environments and virtual networking (virtual distributed switches).
• Basic networking support, to include switch configuration of Brocade/Ruckus switches and routers.
• System patching utilizing Windows Server Update Services (WSUS) and Microsoft Endpoint Configuration Manager (MECM).
• Verification of system vulnerability compliance by reviewing Security Center / Nessus scans.
• Verification of system configuration compliance with DISA STIG checklists using automated tools such as Eval-STIG.
• Outage resolution of information system issues documented in Service Now.
• System automation through Power Shell scripting, MECM, and Fore Scout.
• Provide input for life cycle management of assigned information systems.
• Perform a variety of routine and non‑routine tasks associated with Cyber/Information Security (INFOSEC) and Information Assurance (IA) support in accordance with National and Department of Defense (DoD) standards to include the Risk Management Framework (RMF) and Zero Trust.
• Conduct systems analysis and development to keep systems current with changing technologies, security needs, and user functional requirements.
• Interact with the engineering management team and senior customer personnel on matters requiring coordination across organizational lines.

Required experience and education:

• Bachelor's Degree or an Associate's degree and two (2) years of experience; years of experience may be substituted in lieu of a degree.

Required skills:

• System administration experience with Microsoft Windows Server 2019/2022/2025 and Windows 10/11.
• Reviewing ACAS/Nessus vulnerability scans and remediating vulnerabilities on Windows systems.
• Proficiency with system automation using Power Shell scripting and/or MECM.

Certifications:

• Must have an active CompTIA Security+ ce certification.
• Must be able to obtain Microsoft 365 Certification:
  Endpoint Administrator Associate (formerly Microsoft 365 Certified: Modern Desktop Administrator Associate) or equivalent/higher certification within six months of hire.

Clearance required:

• Must have an active TS/SCI security clearance.

Desired skills:

• Managing Active Directory
• Implementing DISA STIG security configurations
• Utilizing automated security compliance tools such as Eval-STIG
• Proficiency with configuration automation tools such as Microsoft Endpoint Configuration Manager
• Managing virtual server infrastructure with VMware vSphere
• Configuring/managing switches and routers (Cisco or Brocade/Ruckus)
• Performing data backup/restoral with VEEAM

SAIC accepts applications on an ongoing basis and there is no deadline. SAIC® is a premier Fortune 500® mission integrator focused on advancing the power of technology and innovation to serve and protect our world. Our robust portfolio of offerings across the defense, space, civilian and intelligence markets includes secure high‑end solutions in mission IT, enterprise IT, engineering services and professional services.

We integrate emerging technology, rapidly and securely, into mission critical operations that modernize and enable critical national imperatives. We are approximately 24,000 strong; driven by mission, united by purpose, and inspired by opportunities. SAIC is an Equal Opportunity Employer. Headquartered in Reston, Virginia, SAIC has annual revenues of approximately $7.5 billion. For more information, visit  . For ongoing news, please visit our newsroom .

Please apply through the internal career site here >