Linux Systems Administrator Tier 1 & 2 (HPC)

AMERICAN SYSTEMS • Dallas, TX

1d • Onsite

About The Position

AMERICAN SYSTEMS, a 100% employee-owned federal government contractor, is seeking a Linux Systems Administrator with Tier 1 & 2 experience to support a classified High-Performance Computing (HPC) environment in Dallas, TX. This role offers the opportunity to work alongside senior system administrators and engineers, gaining hands-on exposure to HPC platforms, distributed storage, and advanced computing technologies while supporting secure, production Linux systems. This position includes a $5,000 Sign-on Bonus on top of a comprehensive compensation package.

Requirements

• 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

Responsibilities

• 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

Benefits

• healthcare benefits
• paid leave
• retirement plans
• insurance programs
• education and training assistance

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level