About The Position

AMERICAN SYSTEMS , a 100% employee-owned federal government contractor, is seeking a Tier II Linux Systems Administrator to support a classified High-Performance Computing (HPC) environment in Arlington, VA . Are you an experienced Linux administrator with strong system fundamentals wanting to expand your skillset into HPC environments ? If so, this role is for you! You will work alongside senior system administrators and engineers, receiving hands-on exposure to HPC platforms , distributed storage, and advanced compute technologies while supporting secure, production Linux systems.

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 Linux systems administration experience in production environments
  • Experience providing Tier I or Tier II operational support, including troubleshooting and ticket triage
  • Hands-on Linux administration 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
  • Current DoD 8140 IAT Level II certification ( Security+ CE or equivalent)
  • Current RHCSA / RHCE certification or ability to obtain within 6 months of hire

Nice To Haves

  • Exposure to high-performance computing, research, or lab-based environments
  • Familiarity with distributed storage or cluster management tools ; Lustre or Bright Cluster experience is a plus
  • Exposure to automation, containerization, or orchestration tools such as Ansible, Docker/Podman, or Kubernetes
  • Familiarity with databases such as PostgreSQL
  • Experience supporting GPU-enabled systems or AI/ML toolsets (CUDA, TensorFlow )

Responsibilities

  • Provide Tier II Linux systems administration support for HPC users with professional, responsive customer service
  • Support day-to-day operations and maintenance of HPC compute, storage, and networking environments
  • Assist senior system administrators in optimizing hardware and software performance
  • Ensure availability, integrity, and reliability of servers , workstations , and data storage systems , including Lustre and Bright Cluster
  • Administer and manage Linux user accounts, groups, and permissions
  • Triage Tier I/II service desk tickets and produce basic service metrics and reports
  • Support installation, configuration, and testing of HPC system components , including compute servers, storage systems, networking equipment, and peripherals
  • Assist with Linux server configuration, backup operations, and security-related tasks
  • Perform hardware replacements not covered by vendor maintenance agreements
  • Assist network personnel with equipment configuration, firewall support, and network security activities
  • Implement program security requirements and comply with RMF controls
  • Adhere to all IT policies, processes, and procedures
  • Manage changing priorities in a fast-paced, mission-driven environment

Benefits

  • AMERICAN SYSTEMS provides for the welfare of its employees and their dependents through a comprehensive benefits program by offering healthcare benefits, paid leave, retirement plans, insurance programs, and education and training assistance.

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What This Job Offers

Job Type

Full-time

Career Level

Mid Level

Number of Employees

1,001-5,000 employees

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