Linux Systems Administrator - V&V - 27314

HII's Mission Technologies division•Nellis AFB, NV

12h

About The Position

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. Impact 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.

Requirements

5 years of relevant experience with a bachelor’s degree in a related field, or
3 years of relevant experience with a master’s degree in a related field, or
No experience required with a PhD or JD in a related field, or
High school diploma/equivalent and 9 years of relevant experience.
Experience with Linux system administration.
Strong troubleshooting skills across hardware, software, and integrated display systems.
Knowledge of network system administration as applied to modeling and simulation environments.
Understanding of information security best practices.
Ability to perform configuration management and collaborate with configuration managers.
Ability to write compliant processes and technical documentations for simulator technicians and engineers.
Ability to create and maintain data‑logging procedures and test reports, identify system issues, and submit deficiency reports (DRs).
U.S. Citizenship required.
Must have held an active Top Secret clearance (or related) within the last 24 months.
Ability to obtain and maintain a DoD TS/SCI and relevant SAP/SAR clearance.

Nice To Haves

Active DoD TS/SCI clearance.
Bachelor’s degree in Computing, Engineering, Math, or Physical Sciences.
Certifications such as Network+, Linux+, ITIL Foundations, Security+, Project+, or A+.
Experience supporting weapon system networks as a Systems Engineer or Systems Administrator.
Experience operating and maintaining Red Hat Enterprise Linux (RHEL).
Experience supporting combat training units or major military training exercises.
Experience with networks and software used in military combat Modeling & Simulation environments.
Experience contributing to system design or architecture.
Familiarity with Agile software practices.

Responsibilities

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 across classified enclaves.