Senior Classified Systems Administrator — Windows & Linux Expert

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

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.