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 ROLEWe 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 DOIndependently 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 QUALIFICATIONSActive 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 QUALIFICATIONSAdvanced 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 LIKEA 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 USDThe 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: BenefitsAt 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.Protecting Yourself from Recruitment ScamsAnduril is committed to maintaining the integrity of our Talent acquisition process and the security of our candidates. We've observed a rise in sophisticated phishing and fraudulent schemes where individuals impersonate Anduril representatives, luring job seekers with false interviews or job offers. These scammers often attempt to extract payment or sensitive personal information.To ensure your safety and help you navigate your job search with confidence, please keep the following critical points in mind:No Financial Requests: Anduril will never solicit payment or demand personal financial details (such as banking information, credit card numbers, or social security numbers) at any stage of our hiring process. Our legitimate recruitment is entirely free for candidates.Please always verify communications:Direct from Anduril: If you receive an email from one of our recruiters, it will only come from an @anduril.com address.Via Agency Partner: If contacted by a recruiting agency for an Anduril role, their email will clearly identify their agency. If you suspect any suspicious activity, please verify the agency's authenticity by reaching out to View email address on click.appcast.io. Exercise Caution with Unsolicited Outreach: If you receive any communication that appears suspicious, contains grammatical errors, or makes unusual requests, do not engage. Always confirm the sender's email domain is @anduril.com before providing any personal information or clicking on links.What to Do If You Suspect Fraud: Should you encounter any questionable or fraudulent outreach claiming to be from Anduril, please report it immediately to View email address on click.appcast.io. Your proactive caution is invaluable in protecting your personal information and upholding the security and trustworthiness of our recruitment efforts.Data PrivacyTo view Anduril's candidate data privacy policy, please visit . By submitting your application, you consent to Anduril Industries using a third-party service provider to conduct pre-employment risk, integrity, and due diligence screening and assessing potential risks as part of your application process. This third-party service provider provides risk-intelligence services that may include analysis of sanctions and watchlists, adverse media, public-record information, and other lawful open-source or commercial data sources. This third-party service provider does not act as a consumer reporting agency. Use of this provider helps to ensure compliance with applicable laws and protect technology, intellectual property, and organizational security.