Linux Systems Administrator Tier 1 & 2 (HPC)

AMERICAN SYSTEMSDallas, TX
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
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