Linux System Administrator

The Software Engineer II (Linux Administrator) must be able to support the following responsibilities: Provide Red Hat Linux Enterprise Operations & Maintenance (O&M) support activities

• Develop, troubleshoot, and execute Ansible playbooks throughout the enterprise using Ansible Automation capabilities
• Deep understanding of Linux operating systems (i.e. Redhat, CentOS, Ubuntu, Oracle Linux, etc.)
• Develop, implement, and enforce processes and SOPs for O&M and incident response
• Manage and maintain Linux server infrastructure, ensuring optimal performance and reliability
• Proficient in Linux system administration with a focus on Red Hat (3+ years of experience)
• Familiarity with IT Operations Monitoring Tools such as CheckMK, Big Brother
• Perform routine system updates, patch management, and system optimization
• Responsible for configuring and troubleshooting software and application systems as assigned
• Manage and maintain Linux servers and workstations ensuring their optimal performance, security, and reliability
• Monitors system health and configurations to ensure system health and functionality as well as remediate problems/issues in a timely manner
• Scripting skills (e.g., Bash, PowerShell, Python)
• Leveraging Gitlab and Ansible playbooks for operational changes
• Install applications (COTS/GOTS) and perform system upgrades & migrations
• Experience with monitoring tool such as Big Brother, CheckMK configuration for newly built systems
• Implemented and maintain secure, minimally-interrupted operations of Linux servers and workstations
• Implement and enforce security best practices for both Linux systems and workstations
• Experience supporting and maintaining network storage (Netapp)
• Proficiency in vulnerability assessment tools (Tenable Nessus, Qualys etc.), analyzing and interpreting the vulnerability assessment results
• Managing user accounts, via, AIX, Akamai, IDM, Grafana, permissions or local accounts
• Resolving problems for all in house software such as , Nvidia, Tectia, CAC VPN\
• Leverage Red Hat Satellite 6 to create newly built systems with subscriptions
• Able to partition disks, create logical volumes, create file systems and mount file systems
• Be a customer advocate by consistently meeting, exceeding expectations and incorporating customer service into all aspects of work

• This position requires the ability to obtain and maintain a Public Trust clearance. Proof of U.S. citizenship is required for eligibility
• Experience building, configuring, installing server/workstation(s) using Foreman and Red Hat Satellite 6
• Must have keen attention to detail and excellent communication skills.
• Must have 2 years experience with Linux system administration with a focus on Red Hat
• Requires a knowledge of one or more elements or parts of a supply system, or of supply methods, policies, or procedures
• Must be able to work independently to execute against sets of procedures and be able to lift 60 pounds..
• Strong hands-on experience with Linux, Windows, Active Directory, VMWare

Desired Qualifications

• Experience with Sunflower Property management software is a plus.

Formed through the strategic union of Sev1Tech and ERT, Entarian is a premier provider of mission-critical engineering and technology solutions. Founded on a legacy of excellence dating back to 1993, Entarian is a product of an evolved and fully diversified engineering and federal technology leader. From deep space to defense and civilian missions, Entarian delivers secure, mission-aligned digital solutions that drive national resilience and operational effectiveness. We don't just support modernization; we define it.