Trideum Corporation

Linux Systems Administrator

Trideum Corporation

full-time

Posted on:

Location Type: Office

Location: Huntsville • Alabama • United States

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Tech Stack

AnsibleCyber SecurityFirewallsLinuxPython

About the role

  • Configure, deploy, and maintain Linux environments across physical and virtual platforms.
  • Install, configure, and support Linux servers (RHEL, Ubuntu, etc).
  • Manage updates, patches, vulnerability remediation, and automated maintenance workflows using approved tools such as Red Hat Satellite, Landscape, and similar platforms.
  • Monitor system performance and capacity, applying tuning and optimization as needed.
  • Configure and maintain key system services including SELinux (policy tuning and enforcement), FIPS 140-2/3 compliant configurations, Application Managers, USB policies, FA policy and firewalls.
  • Troubleshoot hardware, OS, and application issues including those without existing documentation.
  • Implement and maintain secure system configurations aligned with CIS benchmarks, NIST 800-series controls, and DISA STIGs.
  • Support automation efforts using Bash, Python, Ansible, or comparable tools.
  • Manage identity, access control, and privileged accounts with Entra ID, and Multi-Factor Authentication like Duo/YubiKey.
  • Document system configurations, procedures, and change history.
  • Collaborate with network, Windows, and cybersecurity teams for cross platform support.
  • Participate in incident response, root cause analysis, and remediation workflows.
  • Assist with planning and executing upgrades, migrations, and new deployments.

Requirements

  • Bachelors degree in IT, Computer Science, or related field preferred. Equivalent professional experience and industry certifications will be considered.
  • Strong understanding of Linux internals, file system management, networking fundamentals, and security principles.
  • Experience with package management and kernel updates.
  • Knowledge of scripting and automation.
  • Knowledge of CMMC, NIST and CIS Benchmarks.
  • Hands-on experience configuring and troubleshooting SELinux.
  • Experience implementing and validating systems for FIPS 140-2/3 compliance.
  • 2+ years of hands-on experience supporting Linux environments.
  • Preferred certifications include: CompTIA Linux+, Red Hat RHCSA/RHCE, CompTIA Security+.
Benefits
  • Competitive pay is based on the work you do here and not your previous salary.
  • Traditional benefits such as medical, dental, vision, life, disability, and 401k matching.
  • Paid leave and the ability to cash out leave.
  • Free access to certified financial planners, wellness and support services, and discount programs.
  • Educational assistance and professional development opportunities.
  • And much more.
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
LinuxRHELUbuntuBashPythonAnsibleSELinuxFIPS 140-2/3 compliancepackage managementkernel updates
Soft Skills
troubleshootingcollaborationdocumentationincident responseroot cause analysis
Certifications
CompTIA Linux+Red Hat RHCSARed Hat RHCECompTIA Security+