UNIX​/Windows System Administrator; Systems Administrator

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Requisition Number:27215

Required Travel: 0 - 10%

Employment Type:

Full Time/Salaried/Exempt

Anticipated Salary Range:$88,168.00-$

Security Clearance:

TS/SCI

Level of

Experience:

MidHI

This opportunity resides with All-Domain Operations (ADO), a business group within HII’s Mission Technologies division. All-Domain Operations comprises multi-domain operations, platforms and logistics, and intelligence operations.

HII designs, develops, integrates and manages the sensors, systems and other assets necessary to support integrated ISR operations and accelerated decision-making. With data fusion and mission management capabilities for the Department of Defense, the combatant commands and the intelligence community, HII advances the mission around the globe.

Meet HII’s Mission Technologies Division
Our team of more than 7,000 professionals worldwide delivers all-domain expertise and advanced technologies in service of mission partners across the globe. Mission Technologies is leading the next evolution of national defense – the data evolution - by accelerating a breadth of national security solutions for government and commercial customers. Our capabilities range from C5

ISR, AI and Big Data, cyber operations and synthetic training environments to fleet sustainment, environmental remediation and the largest family of unmanned underwater vehicles in every class. Find the role that’s right for you. Apply today. We look forward to meeting you.

HII Mission Technologies is currently seeking a UNIX/Windows System Administrator to support our work at Beale AFB, CA. The U‑2 enterprise relies on secure, resilient, and continuously available information systems to execute some of the Air Force’s most demanding ISR missions. Your expertise ensures that both classified and unclassified systems remain operational, protected, and ready to support global operations around the clock.

What This Role Offers -

• A critical position supporting 24/7/365 mission‑essential system operations
• Hands‑on work across both UNIX and Windows environments in a high‑visibility ISR mission
• Opportunities to support technical projects, system upgrades, and modernization efforts
• Daily collaboration with a diverse team supporting advanced mission systems
• A chance to directly influence mission continuity, cyber readiness, and system performance

#LI-SF1

System Administration & Continuity

• Ensure continuous availability of classified and unclassified UNIX and Windows systems
• Provide daily system administration, maintenance, and troubleshooting support

  Technical Support & Troubleshooting

  • Diagnose and resolve hardware and software issues across hybrid infrastructures
  • Support users with system access, configuration, and technical assistance
  • Maintain secure, compliant, and mission‑ready IT environments

  Project Support & Implementation

  • Assist with technical project development and implementation
  • Support system upgrades, enhancements, and modernization initiatives
  • Collaborate with team members to integrate new capabilities into existing environments

  Documentation & Compliance

  • Maintain accurate system documentation and configuration records
  • Ensure compliance with DoD, Air Force, and security directives
  • Support audit readiness and system security requirements
  What We're Looking For:
  • 6 years relevant experience with Bachelors in related field; 4 years relevant experience with Masters in related field; or High School Diploma or equivalent and 10 years relevant experience.
  • Previous experience as a System Administrator in a hybrid Windows/UNIX environment
  • CompTIA Security+ CE (or higher) in accordance with DoD 8570.01‑M
  • Strong foundational knowledge of troubleshooting hardware and software infrastructures
  • Active TS/SCI clearance
  Preferred Requirements
  • Bachelor’s degree in Computer Science or a related technical field
  • Experience with license managers in Windows and UNIX environments
  • Scripting, coding, or programming experience (Java, .NET, or similar)
  • High‑Performance Computing (HPC) experience

  HII is more than a job -…