Systems Administrator 3 - 30920

HII's Mission Technologies division•Nellis AFB, NV

1d•$95,416 - $130,000•Onsite

About The Position

Mission Technologies, a division of HII, is seeking a Systems Administrator 3 to support Modeling, Simulation and Training at the Joint Integrated Test and Training Center – Nellis (JITTC-N), Nellis AFB, Nevada. The primary responsibility is providing Linux system support to ensure optimal performance within the Joint Simulation Environment (JSE). The role maintains continuous operation of multi-user computer systems supporting missions and the JSE. It includes administration and maintenance of Linux systems, installation and configuration work, troubleshooting, cybersecurity compliance, capacity planning, user support, and technical documentation. The administrator also supports secure operations across classified enclaves and coordinates hardware and software changes. The position is full-time, salaried, and exempt, with 0–10% required travel. The anticipated salary range is $95,416–$130,000. A Top Secret clearance is required, and the candidate must have held an active Top Secret clearance within the last 24 months.

Requirements

At least 5 years of relevant experience with a bachelor's degree in a related field; 3 years with a master's degree in a related field; 0 years with a Ph.D. or Juris Doctorate in a related field; or 9 years with a high school diploma or equivalent.
Experience with Linux system administration.
Strong hardware and software troubleshooting skills, including integration with diverse display solutions.
Knowledge of network administration principles as they apply to simulator systems.
Awareness of and adherence to information security best practices.
Proficiency in configuration management and collaboration with other configuration managers.
Detail-oriented ability to manage complex systems in a high-stakes environment.
Ability to write processes for simulator technicians and engineers.
Strong oral and written communication and organizational skills for producing and maintaining technical documents and procedures.
Ability to create and maintain data logging procedures and reports to identify issues and submit deficiency reports to relevant subject-matter experts.
Ability to work in a team environment.
Must have held an active Top Secret clearance within the last 24 months.
Must be able to climb ladders and tolerate confined spaces and extreme temperature variances; lifting and moving materials may be required.

Nice To Haves

Active DoD Top Secret/SCI security clearance.
Linux+ and CompTIA+/Security+ certifications.
Experience in JSE, preferably as a Systems Administrator.
Previous experience operating and maintaining Red Hat Enterprise Linux (RHEL).
Experience in software design, testing, and implementation within DoD flight simulators.
Experience contributing to the system design or architecture of new and current systems.
Experience with Agile software practices.
Experience supporting Special Access Program (SAP) efforts.
Excellent oral and written communication skills.
Bachelor of Science in Computer Science or Computer Engineering. Degrees in Engineering, Math, or Physics may qualify with at least 1 year of C++ and/or Python experience.

Responsibilities

Maintain continuous operation of multi-user computer systems to support missions and ensure the Joint Simulation Environment operates at optimal performance.
Set up administrator and user service accounts.
Administer, patch, and maintain Red Hat Enterprise Linux (RHEL) 8 and 9 systems.
Administer, patch, and maintain SUSE Linux Enterprise Server (SLES) 11 SP4 and 12 SP5 systems.
Install system-wide software and allocate mass storage space.
Perform configuration management and troubleshoot physical or virtual/server-based systems.
Apply and validate DISA STIGs and remediate vulnerability scan findings in support of RMF accreditation.
Optimize system operation and resource utilization, and perform system capacity analysis and planning.
Assist users in accessing and utilizing systems.
Interact with users and evaluate vendor products.
Recommend hardware and software purchases.
Coordinate installation of new and upgraded software and hardware, and provide fail-safe and backup systems.
Develop and monitor policies and standards for allocations related to available computing resources.
Securely store, back up, and archive data according to best practices.
Document processes related to database design, configuration, and performance.
Adhere to and enforce cybersecurity practices and procedures, particularly in multi-level secure environments.
Protect sensitive systems and data across classified enclaves.
Write processes for simulator technicians and engineers.
Create and maintain data logging procedures and reports to identify issues, and submit deficiency reports to relevant subject-matter experts.
Produce and maintain technical documents and procedures.
Work in a team environment.