Senior Systems Administrator, Classified IT

Anduril
United States
Full timeUSD 146,000 - 194,000Function: Administration & Executive AssistanceSkills: ["Independent problem-solving","Technical escalation","Mentoring","Documentation","Change management"]

Independently administer, troubleshoot, maintain, and secure classified enterprise Windows and Linux environments. Own key identity and access systems including Active Directory, authentication, and Group Policy, plus patching and services like WSUS, DNS, DHCP, and certificates/PKI. Interpret and remediate DISA STIG findings, manage virtualization in VMware/Hyper-V, automate administration with PowerShell/Bash, and act as an escalation point while mentoring other administrators.

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Anduril
Anduril
9 hours ago

Senior Systems Administrator, Classified IT

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Last checked: 4 hours agoStatus: Live

Job Summary

Independently administer, troubleshoot, maintain, and secure classified enterprise Windows and Linux environments. Own key identity and access systems including Active Directory, authentication, and Group Policy, plus patching and services like WSUS, DNS, DHCP, and certificates/PKI. Interpret and remediate DISA STIG findings, manage virtualization in VMware/Hyper-V, automate administration with PowerShell/Bash, and act as an escalation point while mentoring other administrators.
Location: United States
Employment Type: Full time
Job Function: Administration & Executive Assistance
Seniority: Mid level

Key Responsibilities

  • •Independently administer and troubleshoot Windows Server/desktop and Linux systems, including identity, permissions, services, applications, and domain-connected systems.
  • •Administer and troubleshoot enterprise services such as Group Policy (GPO), WSUS/patch management, DNS, DHCP, file services, and certificate/PKI dependencies.
  • •Create, modify, test, validate, and troubleshoot GPOs, including inheritance, precedence, OU targeting, security filtering, gpresult, and RSoP.
  • •Interpret DISA STIG requirements, implement and validate remediations (including GPO-based security configurations), document findings, and troubleshoot operational impacts.
  • •Administer and troubleshoot virtualization environments (VMware/Hyper-V), troubleshoot complex cross-domain issues using logs/tooling, and lead system changes with validation and rollback considerations.

Pay and Benefits

Salary: USD 146,000 - 194,000
Perks:Health Insurance

Key Requirements

  • •Active TS/SCI security clearance.
  • •Active CompTIA Security+ (or higher) aligned with DoD 8140/8570.
  • •Strong hands-on Windows and Linux systems administration experience working independently in classified environments.
  • •Hands-on experience with Active Directory, GPO administration/troubleshooting, and enterprise patch management/WSUS for domain-connected systems.
  • •Experience interpreting and remediating DISA STIG findings in secure or regulated environments.
Skills:Independent problem-solvingTechnical escalationMentoringDocumentationChange management
Certifications:CompTIA Security+
Tech Stack:Windows ServerLinuxActive DirectoryGroup Policy (GPO)WSUSDNSDHCPActive Directory authenticationCertificatesPKIDISA STIGGPOGpresultPowerShellBashVMwareHyper-VVirtual machinesTCP/IPRSoP

Eligibility

Security Clearance:TS/SCI

Company Brief

Anduril
Designs and builds advanced defense systems combining autonomous aircraft, sensors, and AI-driven software for military and national security applications, focused on modernizing battlefield capabilities and distributed sensing.
Industry: Defense Technology
Company Size: Enterprise (1,001+ employees)
Growth: Scaleup
Valuation: Unicorn (USD 1B+)
Funding: Series E+
Headquarters: Costa Mesa, United States
Founded: 2017
WebsiteLinkedIn