Senior Systems Administrator

The role

The Senior Systems Administrator will independently administer, troubleshoot, maintain, and secure enterprise Windows and Linux systems in classified environments. This role involves leading operational work, mentoring other administrators, and serving as a technical escalation point.

What you will do

• Administer and troubleshoot Windows Server/desktop and Linux systems, Active Directory, and enterprise authentication.
• Administer enterprise Windows services including Group Policy, WSUS, DNS, DHCP, and file services.
• Create, modify, test, validate, and troubleshoot GPOs.
• Administer WSUS or equivalent patching solutions.
• Interpret DISA STIG requirements and implement remediations.
• Administer and troubleshoot VMware, Hyper-V, or similar virtualization environments.
• Troubleshoot complex issues across operating systems, identity, applications, and network dependencies.
• Use PowerShell, Bash, and other scripting methods for administration and automation.
• Plan and lead system changes, maintenance, upgrades, and migrations.
• Serve as an escalation point and mentor for Junior Systems Administrators and Systems Administrators.

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.
• Hands-on experience with Active Directory, GPO administration, enterprise patch management, 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.
• Ability to independently research and resolve complex technical problems, lead technical work, mentor others, and produce effective documentation.

Nice to have

• 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.

Benefits

• Comprehensive, competitive benefits package available at little to no cost to employees.

Before you apply

• Requires active TS/SCI security clearance.
• Requires active CompTIA Security+ certification or higher DoD 8140/8570-aligned certification.
• Consent to third-party pre-employment risk, integrity, and due diligence screening.

About the company

Anduril Industries is a defense technology company with a mission to transform U.S. and allied military capabilities with advanced technology. Their systems are powered by Lattice OS, an AI-powered operating system.