Job Requirements Aberdeen Proving Grounds, MD Top Secret/SCI Polygraph not specified Senior Level Career (10+ yrs experience) $104,000 - $166,000 Job Description Overview We are seeking an experienced HPC Systems Administrator to support a large-scale High Performance Computing (HPC) environment in a secure government setting. This position is responsible for maintaining the health, performance, availability, and security of mission-critical Linux-based computing infrastructure that supports advanced research and operational workloads. The ideal candidate will have extensive experience administering Linux systems within clustered or HPC environments and possess a strong background in troubleshooting, security compliance, system upgrades, and customer support. Responsibilities Administer and maintain large-scale HPC and Linux cluster environments Monitor system performance, health, and availability Troubleshoot and resolve complex technical issues Plan, coordinate, and execute system upgrades and maintenance activities Maintain security compliance and remediate vulnerabilities Support system accreditation and security requirements Respond to user requests and provide technical assistance Develop and maintain technical documentation Provide knowledge transfer and guidance to customer administrators Work independently to solve highly complex infrastructure challenges Serve as a technical advisor and trusted resource for stakeholders Required Qualifications Active TS/SCI Clearance CompTIA Security+ certification CompTIA Linux+ certification 10+ years of experience supporting: High Performance Computing (HPC) environments, OR Large Linux cluster infrastructures Strong Linux systems administration experience Experience maintaining highly available enterprise systems Ability to work independently in a customer-facing environment Strong troubleshooting and problem-solving skills Preferred Qualifications Experience with Red Hat Enterprise Linux (RHEL) Experience supporting large-scale compute clusters Familiarity with supercomputing environments Knowledge of vulnerability management and system hardening Experience performing upgrades, patch management, and lifecycle support within secure environments Desired Technical Skills Linux Administration HPC Operations RHEL / Red Hat Cluster Management System Performance Monitoring Security Compliance Vulnerability Remediation Infrastructure Maintenance Enterprise System Support Documentation and Knowledge Transfer Why Join Us? Support mission-critical computing systems supporting national security objectives Work with advanced HPC and large-scale Linux infrastructure High-impact role with significant technical ownership Direct engagement with end users and technical stakeholders Opportunity to solve complex infrastructure challenges in a secure environment group id: 10105424 Log in to view the job poster Apply now