Linux Systems Administrator Tier I

Linux Systems Administrator Tier ILocation US-VA-ArlingtonID 2026-4052Category IT / Cyber Security / Network SystemsPosition Type Full-TimeRemote NoClearance Required Top Secret/SCIOverviewAMERICAN SYSTEMS is actively recruiting a Tier I Linux Systems Administrator with at a Top Secret clearance to support enterprise-level HPC environments. This position plays a key role in system optimization, security implementation, and collaboration with engineering and network teams. ResponsibilitiesAs a Tier I Linux Systems Administrator, you will have the opportunity to do the following: Provide first-line technical support for software, hardware, network infrastructure, and system security within a Linux HPC environment. Address and resolve user issues related to HPC system operations and maintenance with professionalism and efficiency. Assist Senior Systems Administrators in optimizing hardware and software performance. Manage and maintain Linux user accounts, triaging Tier 1 tickets, and producing service ticket reports. Collaborate with the Linux systsems administrators and engineering teams to install, configure, and test HPC components, including servers, storage systems, and networking equipment. Perform hardware replacements, manage backup solutions, and implement security measures to maintain compliance with all program requirements. Assist network personnel to configure equipment, ensure network security, and manage firewalls. Adhere to established IT policies, processes, and procedures while effectively managing changing priorities. Qualifications Active TOP SECRET clearance w/SCI eligibility Bachelor's degree in STEM discipline (e.g., CS, Engineering, IT, etc.) and 5+ years of experience DoD 8140/8570 IAT II-level certification (e.g., Security+ CE) VMware vSphere 6 and up Scripting (BASH, Python, or Perl) Familiarity with Kubernetes, containerized technology, Ansible, and PostgreSQL Familiarity with the Risk Management Framework (RMF), and securing and hardening Linux systems to meet RMF controls Pay Transparency StatementAMERICAN SYSTEMS is committed to pay transparency for our applicants and employee-owners. The salary range for this position is USD $91,600.00/Yr. - USD $153,000.00/Yr. Actual compensation will be determined based on several factors permitted by law. 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.EEO StatementEEO Race/Sex/Disability Status/Veteran Status

Created: 2026-03-04