Senior Linux Systems Administrator

As a Senior Linux Systems Administrator at Delaware Nation Industries, you will lead Linux infrastructure management, implement configurations, and ensure optimal operation of information systems supporting AFRL's mission. Your duties include managing satellite infrastructure, deploying configurations with Puppet, and mentoring junior admins, all while striving for efficient admin processes.

The Senior Linux Systems Administrator position at Delaware Nation Industries requires a minimum of 7 years of experience, an existing DOD IAT Level 1 8570 certification (Security +), and a Secret security clearance or higher. Advanced skills in Linux administration, particularly with RedHat Enterprise Linux (RHEL) versions 8 and 9, are essential.

In the role of Senior Linux Systems Administrator at Delaware Nation Industries, familiarity with Red Hat Satellite/Foreman, Puppet for custom configurations, and efficiencies in shell/bash scripting are crucial. Knowledge of Ansible and managing high-performance computing clusters will also be advantageous.

A typical day for a Senior Linux Systems Administrator at Delaware Nation Industries involves overseeing Linux server operations, implementing best practices for system configuration, and troubleshooting issues as they arise. You’ll also interact with junior administrators, guiding them in their daily tasks to ensure efficient workflows.

At Delaware Nation Industries, the Senior Linux Systems Administrator plays a pivotal role in supporting the Air Force Research Laboratory's mission by ensuring reliable and efficient information systems. Your work facilitates groundbreaking research initiatives, allowing the USAF to advance in various technological areas.

When responding, highlight your specific roles and projects involving RedHat Enterprise Linux. Discuss versions used, any notable challenges you faced, and how you overcame them. Mention any performance enhancements or efficiencies gained through your work.

Explain your process with Puppet, including writing custom manifests and using modules. Discuss any specific projects you've managed, detailing the complexity and outcomes, and how Puppet facilitated those results.

Describe specific mentorship experiences, emphasizing your approach to guiding junior admins. Discuss how you take complex topics and break them down for easier understanding, providing examples of successful outcomes.

Provide a systematic approach for troubleshooting. Mention tools you use, your methodical process, and how you document your findings for future reference. Share an example of a particularly challenging issue and the resolution.

Detail your knowledge in setting up, configuring, and managing high-performance computing clusters. Talk about specific technologies you've worked with and how you've optimized their performance.

Share examples of scripts you've written and their purposes. Emphasize how these scripts automated tasks or improved processes within your team.

Discuss the resources you use, such as online courses, forums, or professional groups. Mention any certifications pursued and how you apply new knowledge in your work.

Highlight key security practices you've implemented, such as regular updates, user access control, and monitoring tools. Discuss how these practices mitigate risks and protect system integrity.

Give a detailed account of a challenging situation, the steps you took to analyze and resolve it, and the results. Focus on your ability to think critically under pressure.

Convey your enthusiasm for the position and the organization. Discuss how your career goals align with the mission of DNI and the opportunity to support the AFRL's important work.