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Salary: USD 147,000 - 196,000 / annual
Anduril Industries, a defense technology company, is seeking a Senior Systems Administrator to independently administer, troubleshoot, maintain, and secure enterprise Windows and Linux systems in classified environments. This is a senior individual contributor role with mentoring responsibilities.
Key Responsibilities:
- Independently administer and troubleshoot Windows Server/desktop and Linux systems, Active Directory, enterprise authentication, permissions, services, applications, and domain-connected systems
- Administer enterprise Windows services including Group Policy (GPO), WSUS/patch management, DNS, DHCP, file services, certificates/PKI dependencies, and related system components
- Create, modify, test, validate, and troubleshoot GPOs, including inheritance, precedence, OU targeting, security filtering, gpresult, and Resultant Set of Policy (RSoP)
- Administer WSUS or equivalent patching solutions, including synchronization, targeting, approvals, deployment status, failed updates, reporting, and patch-compliance remediation
- Interpret DISA STIG requirements; use applicable STIG tools/checklists; implement and validate remediations, including GPO-based security configurations; document findings; and troubleshoot operational impacts
- Independently administer and troubleshoot existing VMware, Hyper-V, or similar virtualization environments and virtual machines
- Troubleshoot complex issues across operating systems, identity, applications, virtualization, storage, certificates, and network dependencies using logs and diagnostic tooling
- Use PowerShell, Bash, and other scripting/automation methods for administration, bulk changes, data collection, troubleshooting, and repeatable tasks
- Research and resolve unfamiliar issues using vendor documentation, technical references, logs, DISA guidance, and available tooling before requiring escalation
- Plan and lead system changes, maintenance, upgrades, and migrations with implementation, validation, rollback, documentation, and change-control considerations
- Serve as an escalation point and mentor for Junior Systems Administrators and Systems Administrators; provide peer review and technical guidance
- Identify recurring problems, technical debt, security/configuration gaps, and process deficiencies and lead practical improvements within established architecture
Required Qualifications:
- Active TS/SCI security clearance
- Active CompTIA Security+ certification or higher DoD 8140/8570-aligned certification
- Strong hands-on Windows and Linux systems administration experience with demonstrated ability to work independently
- Hands-on experience with Active Directory, GPO administration/troubleshooting, enterprise patch management/WSUS, and domain-connected systems
- Experience interpreting and remediating DISA STIG findings within secure or regulated environments
- Working knowledge of VMware, Hyper-V, or comparable virtualization technologies
- Strong understanding of TCP/IP, DNS, DHCP, IP addressing, subnetting, and network troubleshooting
- Experience with PowerShell, Bash, or similar administrative scripting
- Demonstrated ability to independently research and resolve complex technical problems, lead technical work, mentor others, and produce effective documentation
Preferred Qualifications:
- Advanced Microsoft, Linux, VMware, networking, or cybersecurity certifications
- Experience supporting engineering, manufacturing, or specialized technical applications
- Experience leading infrastructure upgrades, migrations, maintenance events, or cross-functional technical efforts
