Systems Administrator

Job description

Job responsibilities

• Administer, configure, troubleshoot, and maintain Windows and Linux workstations and systems.
• Independently diagnose and resolve hardware, operating system, application, authentication, and network connectivity issues.
• Perform user, group, permission, service, file-system, and enterprise authentication administration using approved processes.
• Support domain-connected Windows and Linux systems, including troubleshooting domain membership and authentication issues.
• Support workstation provisioning, system deployments, patching, upgrades, approved software installations, and configuration changes.
• Troubleshoot TCP/IP, DNS, DHCP, routing/connectivity, and physical network issues and determine when escalation to network engineering is required.
• Use system logs, Event Viewer, command-line tools, PowerShell and/or Bash to investigate and resolve technical issues.
• Support virtualization environments and virtual machines within established architecture and procedures.

Job requirements

• Active TS/SCI security clearance.
• Active CompTIA Security+ certification or higher DoD 8140/8570-aligned certification.
• Working knowledge of Windows system administration and troubleshooting.
• Working knowledge of Linux administration, command-line tools, permissions, services, and troubleshooting.
• Experience with Active Directory or comparable centralized identity and authentication services.
• Understanding of TCP/IP, DNS, DHCP, IP addressing, subnetting, and network troubleshooting.
• Experience independently troubleshooting systems using logs, diagnostic tools, and technical documentation.
• Familiarity with PowerShell, Bash, or similar administrative scripting.