Linux Systems Administrator, Tier 1 & 2 – HPC

AMERICAN SYSTEMS

. Provide Tier 1 and 2 Linux systems administration support for HPC users .

Posted 4/26/2026full-timeDallas • Texas • 🇺🇸 United StatesMid-LevelSenior💰 $93,900 - $156,800 per yearWebsite

Tech Stack

Tools & technologies

LinuxPythonVMware

About the role

Key responsibilities & impact

Provide Tier 1 and 2 Linux systems administration support for HPC users
Support daily operations of HPC compute, storage, and network environments
Maintain Linux servers, workstations, and storage systems, including Lustre and Bright Cluster Manager
Administer user accounts, groups, and permissions
Triage service tickets and produce basic service metrics and reports
Support installation, configuration, testing, troubleshooting, backups, and security for HPC hardware and software
Perform hardware break/fix and assist with network, firewall, and security activities
Support RMF requirements and follow IT policies, processes, and procedures in a mission-driven environment

Requirements

What you’ll need

Active Top Secret clearance with SCI eligibility
U.S. citizenship required
Bachelor’s degree in a STEM discipline or equivalent relevant experience
5–7 years of Red Hat Enterprise Linux systems administration experience in production environments
Experience providing Tier I or Tier II operational support, including troubleshooting and ticket triage
Current DoD 8140 IAT Level II certification ( Security+ CE or equivalent)
Current RHCSA / RHCE certification or ability to obtain within 6 months of hire
Hands-on experience, including user management, permissions, services, and system monitoring
Scripting experience using BASH (or Python) for system administration tasks
Experience supporting VMware vSphere environments
Working knowledge of RMF and Linux system hardening.

Benefits

Comp & perks

healthcare benefits
paid leave
retirement plans
insurance programs
education and training assistance
$5,000 Sign-on Bonus

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

Linux systems administrationRed Hat Enterprise LinuxBASH scriptingPython scriptingHPC supportUser managementSystem monitoringTroubleshootingService ticket triageLinux system hardening

Soft Skills

Problem-solvingCommunicationOrganizational skillsTeam collaborationAttention to detail

Certifications

Top Secret clearanceSCI eligibilityBachelor’s degree in STEMDoD 8140 IAT Level II certificationSecurity+ CERHCSA certificationRHCE certification