Windows Server Administrator – On-Site, DOE/Q Clearance

Lawrence Livermore National Laboratory; Livermore (CA); On-site; USD 125,000 - 186,000; Full time

Benefits offered by this job

Relocation Assistance

Flexible schedules

Education Reimbursement Program

401(k)

Job summary

Lawrence Livermore National Laboratory (LLNL) is seeking a Windows Systems Administrator to deliver advanced Windows Server, Active Directory, and security-focused operations for enterprise systems. The role is full-time and on-site within the IT Operations division, with higher-level responsibilities at the 393.2 level.

You will troubleshoot complex Windows infrastructure, develop PowerShell scripts, support cybersecurity and ATO activities, and contribute to upgrades, disaster recovery, and

Qualifications

• Ability to secure and maintain a U.S. DOE Q/SCI-level security clearance which requires U.S. citizenship.
• Bachelor's degree in a computer-related field, or an equivalent combination of education, technical training, and experience.
• Substantial experience administering Windows Server environments, including Active Directory, DNS, Group Policy, and related infrastructure.
• Extensive experience troubleshooting complex Windows infrastructure and enterprise services, or equivalent senior support role.
• Experience installing, configuring, maintaining, patching, Windows servers and supporting services.
• Ability to independently prioritize work, manage multiple assignments, and resolve complex technical problems.
• Strong interpersonal, verbal, and written communication skills, with the ability to work independently and collaborate with multidisciplinary teams.
• Ability to independently set priorities, manage multiple assignments, and resolve complex problems in a fast-paced environment.

Responsibilities

• Perform advanced troubleshooting and administration for Windows Server, Active Directory, DNS, Group Policy, authentication, and related system integrations.
• Install, configure, maintain, patch, harden, and secure Windows servers and supporting infrastructure services.
• Administer enterprise backup systems, including job monitoring, failure remediation, restore operations, retention management, and recovery validation.
• Analyze complex incidents, identify root causes, implement corrective actions, and document resolutions.
• Develop and maintain PowerShell scripts and utilities to automate administration, monitoring, reporting, and support processes.
• Support cybersecurity operations, including account management, access controls, vulnerability remediation, system monitoring, compliance activities, and preparation of technical artifacts for Assessment and Authorization and ATO activities.
• Provide technical guidance and escalation support to Tier 1 and Tier 2 staff, and maintain accurate SOPs, knowledge articles, and system documentation.
• Participate in infrastructure upgrades, migrations, disaster-recovery and business-continuity exercises, datacenter operations, and operational improvement projects across Corporate and Isolated Networks.
• Perform other duties as assigned.

Skills

Windows Server

Active Directory

DNS

Group Policy

PowerShell

Security clearance

Troubleshooting

Documentation

Communication

Team leadership

Education

Bachelor's degree in a computer-related field

Tools

PowerShell scripts

Backup systems

Security monitoring tools

Patch management

Virtualization

Job description

Lawrence Livermore National Laboratory (LLNL) is seeking a Windows Systems Administrator to deliver advanced Windows Server, Active Directory, and security-focused operations for enterprise systems. The role is full-time and on-site within the IT Operations division, with higher-level responsibilities at the 393.2 level.

You will troubleshoot complex Windows infrastructure, develop PowerShell scripts, support cybersecurity and ATO activities, and contribute to upgrades, disaster recovery, and