Peraton · 18 hours ago
Linux (RHEL) Systems Administrator
Chantilly, VA, US
Full-time
Onsite
Senior Level, Lead/Staff
$112K/yr - $179K/yr
8+ years expPeraton is a next-generation national security company that drives missions of consequence spanning the globe. They are seeking a Senior Infrastructure Systems Administrator to support the Department of Defense community by managing a cloud-based classified environment and ensuring the uptime of multi-tenant systems.
Information TechnologyRobotics
No H1B
Security Clearance RequiredU.S. Citizen Only
Responsibilities
Support our cloud-based classified environment, ensuring the uptime of our multi-tenant, multi-level infrastructure
Perform daily system monitoring and monthly patching as part of the Operations and Maintenance (O&M) team
Manage operating system configurations, system documentation, performance tuning, software installations and updates, system hardening, and storage allocation
Help monitor and maintain mission-critical, highly available, high-performance networked systems in a team-oriented environment
Work closely with other engineering teams to improve our platforms and eliminate complexity from architecture and processes
Monitor and address tenant discrepancy reports pushed to Tier 3
Monitor and manage system resources to maintain efficiency
Provide Tier 3 development support for problem identification, diagnosis, and resolution
Qualification
Required
An active Top Secret clearance with SCI, or SCI eligibility
Bachelor's degree in a field of study applicable to the position with 8+ years of relevant experience. 4 years of relevant experience may be considered in lieu of degree
A minimum of 8 years of experience in a previous System Administration role
Ability to express yourself confidently, concisely, and accurately through written and oral communications
Excellent interpersonal skills and the ability to collaborate effectively with management, the customer, and tenants across DoD
Detail/ process oriented, can multi-task, and the ability to work with minimal supervision
Experience in system installation, patching and testing, and system configuration of networked services, file systems, basic scripting and authentication experience
Operating System administration skills for Red Hat Enterprise Linux 8.x and later to include building systems up from bare metal, performing software package installation, operating system and application troubleshooting, and implementing security hardening
Apply patches, updates, and hotfixes using Red Hat Satellite, YUM, or DNF
Experience ensuring consistent software versions across environments and systems are current
Experience diagnosing / resolving system issues, analyze system logs using journalctl, dmesg, or /var/log
Experience collaborating with Red Hat support (or other similar vendors) for more complex issues
Direct experience working in Windows and/or Linux operating systems
Maintain detailed system documentation in Confluence, Git or other similar tools
Perform and/or analyze regular vulnerability scans and address findings
Preferred
Experience with virtualization/cloud-based technologies (e.g. OpenStack, Citrix XenServer Red Hat Enterprise Virtualization, and/or VMWare), Docker Containers, Ansible, and/or Heat templates
Familiarity with Red Hat tools: RH Virtualization, RH Satellite, RH OpenStack, RH OpenShift
Configure Red Hat High Availability clusters for critical services
Manage load balancing and failover systems
Benefits
Heavily subsidized employee benefits coverage for you and your dependents
25 days of PTO accrued annually up to a generous PTO cap
Eligible to participate in an attractive bonus plan
Company
Peraton
Peraton Fearlessly solving the toughest national security challenges.
10001+ employees
Funding
Current Stage
Late StageLeadership Team
Thomas Terjesen
Chief Information Officer
Recent News
Washington Technology
2026-01-22
2025-09-25
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