Mission-Critical DoD Systems Admin – SCADA/OT Expert

RJM Technologies; Jessup (MD); On-site; USD 90,000 - 130,000; Full time

Job summary

RJM Technologies is seeking an experienced Systems Administrator to support mission-critical DoD systems at Ft. Meade, MD. The role focuses on Windows Server administration, Active Directory, virtualization, system security, and modernization in a high-availability environment.

The ideal candidate has 4+ years of hands-on experience, DoD/DISA/OT exposure, strong AD/GP skills, and a Security+ certification. A related bachelor's degree is preferred, with relevant experience possibly substituting.

Qualifications

• 4+ years of hands-on Windows Server administration.
• Experience in mission-critical environments (DoD/DISA/SCADA/OT).
• Strong Active Directory and Group Policy experience.
• CompTIA Security+ CE certification.
• Bachelor’s degree preferred; relevant experience may substitute.

Responsibilities

• Administer, maintain, secure, and troubleshoot Windows servers, VMs, workstations, and endpoints.
• Manage Windows Server, AD, DNS, DHCP, GPO, and Microsoft infrastructure.
• Perform system hardening, DISA STIG implementation, patching, and remediation.
• Support mission-critical, high-availability environments.
• Plan Windows Server upgrades, migrations, and modernization efforts.
• Administer VMware and/or Hyper-V environments.
• Use PowerShell and command-line tools for administration, troubleshooting, and automation.
• Monitor system availability, performance, capacity, and security.
• Support backup, disaster recovery, COOP, and system recovery activities.
• Troubleshoot Windows, hardware, software, virtualization, and network connectivity issues.
• Maintain technical documentation, configurations, and operational procedures.

Skills

Windows Server administration

Active Directory

Group Policy

PowerShell

Network troubleshooting

Education

Bachelor’s degree in a related technical field

Tools

VMware

Hyper-V

SCCM/MECM

Job description

RJM Technologies is seeking an experienced Systems Administrator to support mission-critical DoD systems at Ft. Meade, MD. The role focuses on Windows Server administration, Active Directory, virtualization, system security, and modernization in a high-availability environment.

The ideal candidate has 4+ years of hands-on experience, DoD/DISA/OT exposure, strong AD/GP skills, and a Security+ certification. A related bachelor's degree is preferred, with relevant experience possibly substituting.