Senior Linux SysAdmin for HPC & Mission-Critical Systems

Leidos; Mississippi; Hybrid; USD 92,000 - 167,000; Full time

Job summary

Leidos seeks a Senior Linux Systems Administrator to support DoD HPC at Stennis Space Center, MS. You will provide expert-level Linux administration, lead a team, and ensure reliable, secure access to critical resources.

The role involves on-site work three days per week in a hybrid model, with DoW clearance requirements and Red Hat Satellite/Ansible automation responsibilities. This position offers growth within a mission-driven environment.”

Qualifications

• Bachelor's degree plus 8+ years Linux admin experience.
• Current DoW 8570 IAT Level II certification (Security+ CE or equivalent) prior to start.
• RHCSA, CompTIA Linux+, or LPIC-1 certification prior to start.
• Active Secret Security Clearance or Interim Secret eligibility prior to start (U.S. Citizenship required).
• Extensive experience administering Red Hat Enterprise Linux environments.
• Experience with Red Hat Satellite administration.
• Hands-on automation using Ansible.
• Strong troubleshooting and communication skills.

Responsibilities

• Provide expert-level administration of RedHat Linux systems, ensuring optimal performance and security.
• Perform systems enhancement, configuration, maintenance, installation, and software upgrades.
• Lead a team of high-performing Linux administrators, providing guidance, technical expertise, and project leadership.
• Foster a collaborative and productive team environment, sharing lessons learned and best practices.
• Maintain and manage the Enterprise Satellite server, ensuring it meets the organization's software deployment and updates needs.
• Automate routine and complex tasks using Ansible, streamlining operations and improving efficiency.
• Monitor and tune systems to achieve optimum performance levels, adhering to established policies, procedures, and service level agreements.
• Identify and address performance issues and optimize the production environment for mission-critical systems.
• Perform acceptance testing of modules, subsystems, and total systems.
• Responsible for software installation, configuration, and ensuring adherence to configuration guidelines.
• Ensure compliance with established standards, policies, and configuration guidelines.
• Maintain documentation and records to demonstrate adherence to regulatory requirements.

Skills

Linux administration

RHEL

Ansible

Red Hat Satellite

8570 IAT II certification

Team leadership

Education

Bachelor's degree

Tools

Red Hat Satellite

Ansible

Job description

Leidos seeks a Senior Linux Systems Administrator to support DoD HPC at Stennis Space Center, MS. You will provide expert-level Linux administration, lead a team, and ensure reliable, secure access to critical resources.

The role involves on-site work three days per week in a hybrid model, with DoW clearance requirements and Red Hat Satellite/Ansible automation responsibilities. This position offers growth within a mission-driven environment.”