Senior Systems Administrator, Classified IT

Anduril-1; Costa Mesa (CA); On-site; USD 146,000 - 194,000; Full time

Job summary

Anduril Industries seeks a Senior Systems Administrator to independently administer, troubleshoot, maintain, and secure enterprise Windows and Linux systems in classified environments.

This role is a technical escalation point, mentoring others and leading operational work, including GPOs, patching, DISA STIG remediations, virtualization, and scripting. US salary range is $146,000–$194,000 USD, with equity and benefits.

Qualifications

• Active TS/SCI security clearance required.
• Hands-on Windows and Linux system administration in secure environments.
• Experience with Active Directory, GPO, patch management, and domain-connected systems.
• Familiarity with DISA STIG findings and remediation.

Responsibilities

• Administer and troubleshoot Windows Server/desktop and Linux systems in classified environments.
• Manage GPOs, WSUS/patching, DNS, DHCP, and related services.
• Lead change planning, validation, rollback, and documentation.
• Mentor Junior Administrators and lead technical work.
• Use PowerShell, Bash for automation and data collection.
• Research and resolve issues via vendor docs and logs.

Skills

Windows administration

Linux administration

AD & GPO

Patch management

DISA STIG remediation

Virtualization (VMware/Hyper-V)

Networking (TCP/IP/DNS/DHCP)

Scripting (PowerShell/Bash)

Independent research

Mentorship/leadership

Tools

VMware

Hyper-V

WSUS

PowerShell

Bash

Job description

Senior Systems Administrator, Classified IT

Anduril Industries is a defense technology company with a mission to transform U.S. and allied military capabilities with advanced technology. By bringing the expertise, technology, and business model of the 21st century’s most innovative companies to the defense industry, Anduril is changing how military systems are designed, built and sold. Anduril’s family of systems is powered by Lattice OS, an AI-powered operating system that turns thousands of data streams into a realtime, 3D command and control center. As the world enters an era of strategic competition, Anduril is committed to bringing cutting-edge autonomy, AI, computer vision, sensor fusion, and networking technology to the military in months, not years.

ABOUT THE ROLE

We are looking for a Senior Systems Administrator to independently administer, troubleshoot, maintain, and secure enterprise Windows and Linux systems in classified environments. Senior Systems Administrators are expected to perform nearly all routine and advanced administration with little to no assistance, serve as a technical escalation point, mentor other administrators, and lead operational work. Assistance should generally be limited to unfamiliar technologies, high-risk changes, architecture decisions, or issues requiring specialized engineering expertise.

WHAT YOU'LL DO

• Independently administer and troubleshoot Windows Server/desktop and Linux systems, Active Directory, enterprise authentication, permissions, services, applications, and domain-connected systems.
• Administer and troubleshoot 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.

WHAT SUCCESS LOOKS LIKE

A successful Senior Systems Administrator can be given an existing environment or system and independently run, secure, maintain, and troubleshoot it. They do not need every answer memorized, but are expected to research unfamiliar problems and drive them to resolution with limited assistance. Systems Engineering engagement is primarily required when work crosses into new architecture, major redesign, specialized engineering, or high‑risk technical decisions.

US Salary Range

$146,000 - $194,000 USD

The salary range for this role is an estimate based on a wide range of compensation factors, inclusive of base salary only. Actual salary offer may vary based on (but not limited to) work experience, education and/or training, critical skills, and/or business considerations. Highly competitive equity grants are included in the majority of full time offers; and are considered part of Anduril's total compensation package. Additionally, Anduril offers top‑tier benefits for full‑time employees, including:

At Anduril, we invest in our people. Our comprehensive, competitive benefits package (available at little to no cost to employees) ensures you’re supported in health, recovery, and whatever comes next. For more information, Explore Our Benefits .