Linux Systems Administrator

Dexian Government Solutions. is recruiting for a Linux Systems Administrator to support our contract at the USAMRIID in Fort Detrick, MD., 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., Systems Administration & Infrastructure

• Install, configure, and maintain Linux (RHEL 7/8+) and Windows Server environments
• Administer VMware/vCenter infrastructure ensuring 99.9% uptime
• Perform 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 Operations

• Design, 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) Environment

• Administer and support HPC clusters, including compute nodes and head nodes
• Manage 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 applications
• Develop and maintain SOPs for HPC operations and maintenance
• Provide technical guidance on HPC architecture, performance, and future enhancements
• Utilize HPC management tools like Bright and iDRAC.

Networking & Troubleshooting

• Provide advanced troubleshooting for network, server, and application issues
• Resolve 80%+ of issues without escalation, demonstrating strong independent problem-solving
• Support connectivity troubleshooting across enterprise environments

Active Directory & User Support

• Manage Active Directory (users, groups, permissions) for large environments
• Support DoD Enterprise Email and account-related issues

Cloud & Modernization

• Support and execute migration of systems to DoD-approved cloud environments (e.g., AWS GovCloud, Azure Government)
• Maintain hybrid infrastructure between on-prem and cloud platforms

Monitoring & Tools

• Utilize monitoring tools such as PRTG, SolarWinds, or equivalent
• Ensure system availability, performance, and reliability across all platforms

Leadership & Collaboration

• Contribute to task prioritization, status reporting, and operational planning
• Collaborate with government stakeholders and cross-functional teams

• 5+ years of Linux system administration experience
• Active Secret security clearance (required)
• IAT II: CompTIA Security+ certification (or equivalent)
• Strong knowledge of Linux OS, shell scripting, and command-line tools
• Strong experience with virtualization technologies (VMware, KVM, etc.)
• Solid understanding of networking protocols and troubleshooting
• Ability to resolve issues independently with minimal escalation.

Our 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!

Dexian 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.