Systems Administrator: Windows Server, AD & Security Clearance

Jobtailor; San Diego (CA); On-site; USD 90,000 - 120,000; Full time

Job summary

Jobtailor in San Diego, CA, seeks a skilled IT Administrator to maintain servers, manage Active Directory, and implement Group Policy to ensure security and reliability. The role requires hands-on Windows Server experience and a current U.S. Secret clearance.

You will collaborate with network and cybersecurity teams, perform patching and hardening, and document procedures and configurations for ongoing operations. The position emphasizes operational readiness and cross-functional coordination.

Qualifications

• Experience with Windows Server administration and enterprise IT support.
• Experience with Active Directory account management, security groups, permissions, and user access troubleshooting.
• Hands-on experience configuring and troubleshooting Group Policy Objects to support security and operations.

Responsibilities

• Maintain smooth operation of servers, workstations, and supporting enterprise services.
• Create, maintain, and troubleshoot user accounts, security groups, permissions, and access rights within Active Directory.
• Configure, manage, and troubleshoot Group Policy Objects to support system security, compliance, and operational requirements.
• Support Windows Server administration, including server roles, features, services, and routine maintenance.
• Maintain DNS records, naming organization, and related system documentation to support reliable network and system operations.
• Perform system troubleshooting for authentication, access, server availability, workstation issues, and application or service interruptions.
• Assist with patch management, software updates, vulnerability remediation, and system hardening efforts.
• Prepare or ensure that appropriate system documentation exists, including operational instructions, troubleshooting steps, and configuration records.
• Coordinate with network administrators, cybersecurity personnel, customers, and third-party support teams to resolve system issues and maintain operational readiness.
• Monitor supported systems and recommend improvements to maintain reliability, security, and performance.

Skills

System administration

Active Directory

Group Policy

Windows Server

Security clearance

Communication

Education

Bachelor's degree in related field

Active U.S. Secret clearance

Tools

PowerShell

DNS management tools

Job description

Jobtailor in San Diego, CA, seeks a skilled IT Administrator to maintain servers, manage Active Directory, and implement Group Policy to ensure security and reliability. The role requires hands-on Windows Server experience and a current U.S. Secret clearance.

You will collaborate with network and cybersecurity teams, perform patching and hardening, and document procedures and configurations for ongoing operations. The position emphasizes operational readiness and cross-functional coordination.