Full-Time

HPC Linux System Administrator

Posted on 1/15/2026

Deadline 1/15/27
Beyond New Horizons

Beyond New Horizons

Compensation Overview

$67k - $119k/yr

No H1B Sponsorship

Tullahoma, TN, USA

In Person

On-site at Arnold AFB, TN; no remote work.

US Citizenship, US Top Secret Clearance, UK Citizenship Required

Category
Software Engineering (1)
Required Skills
Computer Networking
Linux/Unix
Requirements
  • Bachelor’s degree in IT-related field with a minimum of 2 years of progressively relevant experience, or an equivalent combination of education and experience.
  • Must currently possess or commit to obtaining any requisite certifications required for assuming administrative role in accordance with DoD 8140 within 6 months of hiring date.
  • Must be able to obtain and maintain a security clearance and access to the AEDC local area network.
  • Current US Citizenship required.
Responsibilities
  • Serve as system administrator for any Linux based servers and workstations with specific responsibility for HPC cluster operation, management, and maintenance using the Nvidia Bright Cluster Manager software.
  • System backup execution, application updates and security configuration maintenance.
  • Support to analysts for managing resource availability and data transfers.
  • Vulnerability assessment and management.
  • Handle support, maintenance, repair, and installation of associated Linux and Windows workstations, peripheral equipment, and software applications.
  • Produce artifacts of security configuration and compliance upon request.
  • Support interface with external auditing agencies overseeing system compliance.
  • System security configuration, hardening, patching, and monitoring, including implementing Security Technical Implementation Guides (STIGs) and other DoD security policies.
  • Assists in the administration and support of other Government IT systems/networks via collaborative engagement with team members.
  • Provide secondary network administration support for other Linux based workstations and servers, printers, and other peripheral IT equipment.
  • Work with the Information Systems Security Manager (ISSM) to ensure compliance with Cybersecurity regulations and best practices.
  • Ensure Cybersecurity requirements are consistently documented, maintained, evaluated and compliant for Government IT system networks including components of systems.
  • Provide end user troubleshooting support for Government IT system networks through the ticket support system.
  • Support the use of common work processes and procedures within assigned function across the TOS contract.
  • Provide support to AEDC customers and other contractors.
  • Periodically evaluates process and program effectiveness and take action to maintain continuous improvement.
  • Availability outside of working hours to remediate critical issues with IT Infrastructure as required.
  • Perform other duties as assigned by supervisor.
Desired Qualifications
  • CompTIA Security+ Certification
  • Active Top Secret DoD security clearance.
  • Red Hat Certified System Administrator (RHCSA) and or Red Hat Certified Engineer (RHCE)
  • Experience with installation, configuration and troubleshooting the following: Unix/Linux/Windows workstation and server OS environments, hardware, software, mass storage, HPC, patching, ACAS, VLANs, VMWare, OpenShift, NetApp ONTAP, Active Directory, Veeam, and SolarWinds NPM.
  • Proficiency in scripting and automation tools (e.g., Bash, PowerShell, Python, Ansible).
  • Knowledge and experience with Linux clustering concepts and architectures.
  • Configuration and Application of security policies and templates for system hardening.
  • Configuration, Monitoring, and Tuning of server applications and performance.
  • Experience with NISPOM and/or DoD/RMF
  • Experience with network services such as DNS, DHCP, LDAP, NIS, Apache, Tomcat.
  • Skilled at building and maintaining personnel and customer relationships.
  • Effective communication and interpersonal skills.
  • Strong analytical and problem-solving abilities.
  • Ability to work both independently and collaboratively within a team.
  • Skilled in oral and written communication.
  • Ability to effectively manage multiple priorities.

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INACTIVE