AMERICAN SYSTEMS

Tier II Linux Systems Administrator – HPC, Top Secret Clearance

AMERICAN SYSTEMS

full-time

Posted on:

Location Type: Office

Location: ArlingtonVirginiaUnited States

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Salary

💰 $91,600 - $153,000 per year

About the role

  • 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
  • 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

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
Benefits
  • Healthcare benefits
  • Paid leave
  • Retirement plans
  • Insurance programs
  • Education and training assistance
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
Linux systems administrationHPC supportUser managementPermissions managementScripting (BASH, Python)VMware vSphereSystem monitoringSystem configurationBackup operationsNetwork security
Soft Skills
Customer serviceProblem-solvingCommunicationAdaptabilityTeam collaborationTime managementAttention to detailOrganizational skillsPrioritizationResponsiveness
Certifications
Top Secret clearanceDoD 8140 IAT Level II (Security+ CE or equivalent)RHCSARHCE