Linux Systems Administrator

Linux Systems AdministratorDexian Government Solutions is recruiting for a Linux Systems Administrator to support our contract at the USAMRIID in Fort Detrick, MD. Target Salary: $90,000.00Position Overview:We are seeking a skilled Linux Systems Administrator to support mission-critical infrastructure at USAMRIID. This role requires a hands-on engineer with experience across Linux, virtualization, storage, and HPC environments who can operate independently with minimal ramp-up.Job Duties:Systems Administration & InfrastructureInstall, configure, and maintain Linux (RHEL 7/8+) and Windows Server environmentsAdminister VMware/vCenter infrastructure ensuring 99.9% uptimePerform system hardening, STIG compliance, and monthly patching across multiple networks (NIPR, RSN)Monitor system health, logs, and security tools (e.g., Trellix/McAfee, ESS).Enterprise Storage & Data Center OperationsDesign, implement, and maintain SAN/NAS storage environments (file and block storage)Administer enterprise storage platforms such as Dell Isilon (OneFS), ECS (Superna/Golden Copy), or similar Dell EMC Unity and Data Domain (IDPA).Support backup and recovery solutions (e.g., Avamar, Veeam)Utilize tools such as HPC (Bright), VxRail (VMware/Vcenter).HPC (High Performance Computing) EnvironmentAdminister and support HPC clusters, including compute nodes and head nodesManage job schedulers (e.g., SLURM, PBS) and cluster provisioning tools (e.g., Bright Cluster Manager)Support and optimize parallel file systems (e.g., Lustre, GPFS)Monitor and tune performance across HPC systems (CPU, memory, I/O, network)Assist with installation and troubleshooting of scientific and bioinformatics applicationsDevelop and maintain SOPs for HPC operations and maintenanceProvide technical guidance on HPC architecture, performance, and future enhancementsUtilize HPC management tools like Bright and iDRAC.Networking & TroubleshootingProvide advanced troubleshooting for network, server, and application issuesResolve 80%+ of issues without escalation, demonstrating strong independent problem-solvingSupport connectivity troubleshooting across enterprise environmentsActive Directory & User SupportManage Active Directory (users, groups, permissions) for large environmentsSupport DoD Enterprise Email and account-related issuesCloud & ModernizationSupport and execute migration of systems to DoD-approved cloud environments (e.g., AWS GovCloud, Azure Government)Maintain hybrid infrastructure between on-prem and cloud platformsMonitoring & ToolsUtilize monitoring tools such as PRTG, SolarWinds, or equivalentEnsure system availability, performance, and reliability across all platformsLeadership & CollaborationContribute to task prioritization, status reporting, and operational planningCollaborate with government stakeholders and cross-functional teamsRequired Qualifications:5+ years of Linux system administration experienceActive Secret security clearance (required)IAT II: CompTIA Security+ certification (or equivalent)Strong knowledge of Linux OS, shell scripting, and command-line toolsStrong experience with virtualization technologies (VMware, KVM, etc.)Solid understanding of networking protocols and troubleshootingAbility to resolve issues independently with minimal escalation.Company DescriptionDexian Government Solutions is an award-winning, ISO 9001:2015 certified, business and GSA contract holder providing diversified Information Technology services to both Civilian and Defense agencies. Services include Software Development, Systems Integration, Data Management, Project Management, Operations & Maintenance, Cybersecurity, and Training and Audio/Visual (AV) Solutions. Dexian Government Solutions has received several recognitions, including rankings on "Top 50 Companies to Watch", Washington Technology's Annual "FAST 50", and Inc. 500's List of "Fastest Growing Private Companies". The Dexian Government Solutions team is comprised of individuals who are dedicated to the success and sustainability of our customers and their missions. Our combination of technical expertise, big business experience, and small business agility allows us to promptly provide our customers with exceptional IT and engineering solutions.BenefitsOur robust benefits package includes Open Paid Time Off, Paid Holidays, Company-paid Life/AD&D, Company-paid Short Term and Long-Term Disability, Health Insurance with Company Contribution, 401k Plan with Company Match, Employee Recognition Program, opportunity for Employee Referral Bonus, opportunity for annual Performance Bonus and much more!EEO StatementDexian Government Solutions is proud to be an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. All employment is decided based on qualifications, merit, and business need.All applicants will be considered for employment without attention to race, religion, color, national origin, ancestry, physical or mental disability, medical condition, pregnancy (including childbirth, lactation and related medical conditions), marital status, genetic information (including characteristics and testing), gender, sexual orientation, gender identity or expression, military and veteran status, or any other status protected under federal, state, or local law in the locations where we operate.If you are an individual with a disability and would like to request a reasonable accommodation as part of the employment selection process, please contact Human Resources. The Company invites any applicant and/or employee to review the Company's written Affirmative Action Plan. This plan is available for inspection upon request.