Windows Systems Administrator (Mid-Level) - DoD Environment

Assurance Technology Corporation (ATC); Washington (District of Columbia); On-site; USD 100,000 - 150,000; Full time

Job summary

Assurance Technology Corporation (ATC) is seeking a mid-level Windows Systems Administrator with 5–10 years of experience to support DoD environments in the Washington, DC area. The role focuses on Windows Server/End User platforms, DoD security controls, and mission-critical systems in controlled networks.

The ideal candidate will administer Windows Server 2016–2022, manage AD/GP/DNS/DHCP, and handle DISA STIGs, SCAP scans, and RMF activities.

Qualifications

• 5-10 years of Windows Systems Administration experience.
• Experience supporting DoD or Federal IT environments.
• Strong knowledge of Windows Server 2016+ and Windows 11.
• Hands-on experience with DISA STIGs and SCAP tools.
• Familiarity with RMF and NIST 800-53.
• Experience working in controlled or classified environments.

Responsibilities

• Administer Windows Server 2016, 2019, and 2022 environments.
• Support Windows 11 Enterprise endpoints.
• Manage Active Directory, Group Policy, DNS, DHCP, and trusts.
• Implement and remediate DISA STIGs.
• Conduct SCAP scans and vulnerability remediation.
• Support RMF activities and POAM remediation.
• Perform system patching, monitoring, and incident response.
• Support backup, restore, and disaster recovery operations.
• Participate in change management and CCB processes.
• Maintain system documentation and accreditation artifacts.

Education

Security+ CE (DoD 8570 / 8140 compliant)

Microsoft Windows certifications or equivalent experience

RMF or CISSP preferred

Tools

PowerShell scripting

VMware vSphere

Hyper-V

Exchange

MECM (SCCM)

Intune

WSUS

Defender

HBSS

McAfee ePO

Veeam

Commvault

NetBackup

Job description

We are seeking a mid-level Windows Systems Administrator with 5-10 years of experience supporting Department of Defense (DoD) environments. The ideal candidate will have hands‑on experience administering modern Windows Server and Windows endpoint platforms, enforcing DoD security standards, and supporting mission‑critical systems in regulated or classified networks.

Key Responsibilities

• Administer Windows Server 2016, 2019, and 2022 environments
• Support Windows 11 Enterprise endpoints
• Manage Active Directory, Group Policy, DNS, DHCP, and trusts
• Implement and remediate DISA STIGs
• Conduct SCAP scans and vulnerability remediation
• Support RMF activities and POAM remediation
• Perform system patching, monitoring, and incident response
• Support backup, restore, and disaster recovery operations
• Participate in change management and CCB processes
• Maintain system documentation and accreditation artifacts

Required Qualifications

• 5-10 years of Windows Systems Administration experience
• Experience supporting DoD or Federal IT environments
• Strong knowledge of Windows Server 2016+ and Windows 11
• Hands‑on experience with DISA STIGs and SCAP tools
• Familiarity with RMF and NIST 800-53
• Experience working in controlled or classified environments

Preferred Skills

• PowerShell scripting and automation
• VMware vSphere or Hyper‑V
• Exchange, MECM (SCCM), Intune, or WSUS
• Endpoint security platforms (Defender, HBSS, McAfee ePO)
• Backup solutions (Veeam, Commvault, NetBackup)

Certifications

• Security+ CE (DoD 8570 / 8140 compliant)
• Microsoft Windows certifications or equivalent experience
• RMF or CISSP preferred

Security Clearance

• Active Secret clearance required
• Top Secret preferred depending on program