DoD-Cleared Systems Administrator — Windows/Linux

Command Post Technologies, Inc; Arlington (VA); On-site; USD 100,000 - 140,000; Full time

Benefits offered by this job

Health benefits

401k with company match

Employee Stock Ownership Plan (ESOP)

Tuition reimbursement

Flexible hours

Paid Time Off

Parental Leave

Job summary

Command Post Technologies, Inc. seeks Systems Administrators to support DARPA in Arlington, Virginia.

The role includes installation, configuration, maintenance, and security of enterprise information systems across classified and unclassified environments, with Windows and/or Linux servers, virtualization, and DoD cybersecurity compliance. The successful candidate will manage AD, DNS, GPO, patching, backups, and system monitoring while coordinating with cybersecurity and network teams to ensure

Qualifications

• Final DoD Secret security clearance, with ability to meet task-order requirements.
• 3+ years of systems administration or enterprise IT operations.
• Hands‑on experience administering Windows Server and/or Linux in an enterprise environment.
• Experience installing, configuring, patching, monitoring, and troubleshooting server operating systems and applications.
• Working knowledge of networking fundamentals (TCP/IP, DNS).
• Familiarity with virtualization technologies (VMware vSphere, Hyper‑V).
• Experience with Active Directory, Group Policy, DNS and enterprise authentication services.
• Experience with backup and recovery procedures and technical documentation.
• Ability to diagnose and resolve issues independently and collaborate with cybersecurity teams.

Responsibilities

• Install, configure, administer, maintain, and troubleshoot Windows and/or Linux server environments and enterprise applications.
• Perform system administration tasks including account management, access control, software installation, patch management, and configuration.
• Monitor system availability, performance, resource utilization, and health to identify issues.
• Support virtualization platforms and server infrastructure.
• Implement secure configurations per DoD cybersecurity policies and STIGs.
• Apply OS updates and security patches to maintain readiness.
• Support AD, DNS, and policy services as applicable.
• Troubleshoot connectivity issues with network teams.
• Perform backup, restoration, and recovery activities.
• Assist with system integration, migration, and modernization initiatives.
• Support vulnerability management and monitoring to remediate findings.
• Develop and maintain system documentation and SOPs.
• Support testing and deployment of new technologies within approved environments.

Skills

Troubleshooting

Documentation

Independent work

Team coordination

Tools

Windows Server

Linux

VMware vSphere

Hyper-V

Active Directory

DNS

Group Policy

Patching

Job description

Command Post Technologies, Inc. seeks Systems Administrators to support DARPA in Arlington, Virginia.

The role includes installation, configuration, maintenance, and security of enterprise information systems across classified and unclassified environments, with Windows and/or Linux servers, virtualization, and DoD cybersecurity compliance. The successful candidate will manage AD, DNS, GPO, patching, backups, and system monitoring while coordinating with cybersecurity and network teams to ensure