Windows Server Administrator – Active Security Clearance Required

LLNL•Livermore, CA

3d•Onsite

About The Position

Lawrence Livermore National Laboratory (LLNL) is seeking a Windows Systems Administrator to provide advanced technical computer, infrastructure, and operations support for enterprise Windows systems and related services. The role involves working in a safety-conscious, challenging, rapidly changing, and team-oriented environment to solve complex technical problems. This position requires full-time on-site presence and will be filled at either a standard or higher level based on experience. The higher level will involve additional responsibilities such as diagnosing and resolving highly complex issues, serving as a technical leader and consultant, and providing technical leadership for complex projects.

Requirements

Active DOE Q clearance (or active Top Secret clearance) with the ability to obtain and maintain Sensitive Compartmented Information (SCI) access.
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.
Highly advanced knowledge of and substantial experience with Windows Server, Active Directory, DNS, Group Policy, authentication, and related infrastructure (higher level).
Substantial experience providing technical leadership, mentoring technical staff, and resolving complex infrastructure problems (higher level).
Substantial experience developing or modifying PowerShell scripts and utilities for administration, monitoring, reporting, and process automation (higher level).
Substantial experience leading system upgrades, migrations, disaster-recovery exercises, root-cause investigations, and corrective-action activities (higher level).

Nice To Haves

Experience with cybersecurity tools, vulnerability remediation, access controls, security monitoring, and compliance activities.
Experience administering enterprise backup and recovery platforms, including job monitoring, failure remediation, restore operations, retention management, and recovery validation.
Experience with Windows hardening, security baselines, vulnerability remediation, access controls, and cybersecurity monitoring tools.
Experience with enterprise management, patching, software distribution, virtualization, storage, and infrastructure-monitoring tools.
Professional computer or network certification, such as Microsoft, CompTIA, Red Hat, or Cisco certifications.
Experience supporting classified, regulated, isolated, or otherwise security-sensitive computing environments, including NIST-based security controls or comparable authorization activities.
Experience serving as a technical team lead.

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.
Diagnose, troubleshoot, and resolve highly complex Windows, system, network, backup, and integration problems, including driving problem resolution, working with vendors, and managing support cases as required (higher level).
Serve as a technical leader and internal and external consultant, providing highly advanced technical assistance to the user community and collaborating with customers in the design and implementation of computing environments (higher level).
Provide technical leadership for complex upgrades, migrations, disaster-recovery activities, cybersecurity remediation, and operational improvement projects (higher level).
Mentor Tier 1 and Tier 2 staff and provide guidance on troubleshooting methods, system administration practices, and technical procedures (higher level).
Lead root-cause investigations and develop corrective actions for recurring or highly complex incidents (higher level).
Support the development, review, and maintenance of technical artifacts and evidence for ATO packages and other compliance activities (higher level).