Linux Systems Administrator - V&V

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Requisition Number:27314

Required Travel: 0 - 10%

Employment Type:

Full Time/Salaried/Exempt

Anticipated Salary Range:$95,416.00-$

Security Clearance:

Top Secret

Level of

Experience:

Mid

This opportunity resides with Global Security (GS). Mission Technologies’ Global Security (GS) group comprises live, virtual, constructive (LVC) solutions; fleet sustainment; nuclear and environmental; and Australia business.

As a trusted partner to our military customers, HII designs, develops and operates the largest LVC enterprise that prepares warfighters for cross-domain battle. With advanced technologies to enable mission readiness, HII understands that preparation requires full coordination—not readiness in piece‑parts.

For more than 40 years, the U.S. Navy has entrusted HII to maintain and modernize the vast majority of its fleet. With a holistic approach to life‑cycle maritime defense systems—from small watercraft to submarines, surface combatants and aircraft carriers—HII ensures a high state of readiness.

HII supports the Department of Energy’s national security mission through the management and operation of its sites, as well as the safe cleanup of legacy waste across the country. HII meets clients’ toughest nuclear and environmental challenges.

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 seeking a Linux Systems Administrator to support the Joint Simulation Environment (JSE) at the Joint Integrated Test and Training Center – Nellis (JITTC‑N), located at Nellis AFB, NV. The primary focus of this role is to perform systems verification and validation (V&V) to ensure optimal performance, reliability, and readiness of JSE components and applications.

In this role, you will directly support mission‑critical training and test operations by ensuring the continuous, secure, and efficient operation of multi‑user computer networks and JSE systems. Your work in V&V, system configuration, troubleshooting, and performance analysis will help maintain operational integrity and support advanced modeling and simulation activities across classified environments.

• Conduct V&V assessments to ensure continuous operation and optimal performance of JSE networks, systems, and applications.
• Execute V&V tests of applications and networks using administrator and user accounts.
• Support system‑wide software installations and allocate mass storage resources.
• Perform system and network configuration changes and testing across physical and virtual/server environments.
• Optimize system operation, analyze resource utilization, and conduct capacity planning.
• Assist users with system and application access, troubleshooting, and general usage.
• Evaluate system performance, reliability, and serviceability through user interaction and testing.
• Provide data‑driven recommendations regarding hardware and software.
• Coordinate installation of new and upgraded software/hardware, including fail‑safe and backup solutions.
• Develop and monitor policies and standards for computing resource allocation.
• Ensure secure storage, backup, and archiving of data.
• Support JSE system test plan development, execution, data collection, and reporting.
• Document test results related to networks, applications, databases, configurations, and performance.
• Enforce information security best practices, especially within multi‑level secure environments.
• Maintain vigilance to protect sensitive systems and data…