Linux (RHEL) Systems Administrator

Peraton • Chantilly, VA

6d

About The Position

Peraton is seeking a Senior Infrastructure Systems Administrator in our Chantilly, VA office in support of our Department of Defense (DoD) community customer as part of a highly talented, highly motivated and high-performing team. As part of the Infrastructure as a Service (IaaS) Tier 3 team you will support an exciting program which involves design, development, test, and deployment of a broad and complex system in an Agile construct to contribute to mission success for a variety of stakeholders. Join us and be part of the next generation of innovators as we blaze a trail forward for our profession and company.
What you'll do:
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

Requirements

• 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

Nice To Haves

• 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

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

Benefits

• Peraton offers enhanced benefits to employees working on this critical National Security program, which include heavily subsidized employee benefits coverage for you and your dependents, 25 days of PTO accrued annually up to a generous PTO cap and eligible to participate in an attractive bonus plan

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level