Linux Systems Administrator

Linux Systems Administrator
Full-time
Huntsville, AL

About Us

Trideum Corporation is a 100% employee-owned company, committed to embracing the world’s toughest challenges with a servant’s heart. Through dedicated hard work and commitment, we provide distinctive quality and unparalleled customer service in all aspects of our business. We also know that our employees are the key to our success, and it is our mission to take care of them so they can take care of our customers and communities where we live, work, and play.

Position Summary

Trideum is seeking a skilled and self-motivated Linux System Administrator to join our team at our Huntsville, AL headquarters to support critical infrastructure. The Linux Systems Administrator will support essential infrastructure by managing and maintaining Linux-based systems to ensure high availability, security, and reliability

You will work closely with cross-functional teams to support automation efforts, monitoring, and performance optimization. This position requires strong hands-on experience with Linux environments, system management, security, troubleshooting, and cloud technologies.

This role includes deploying, securing, and optimizing Linux servers and services; enforcing configuration and patch management standards; and ensuring compliance with internal IT and cybersecurity requirements. You will engage regularly with IT operations, networking, cybersecurity, and DevOps teams to maintain a stable enterprise environment.

Trideum invests in our IT professionals with ongoing training, certification support, and career growth opportunities within enterprise IT, cybersecurity, and cloud engineering.

What You’ll Do

• 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 & Qualifications

Education

• Bachelor’s degree in IT, Computer Science, or related field preferred.
• Equivalent professional experience and industry certifications will be considered.

Technical Requirements

• 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.

Experience

• 2–5 years of hands-on experience supporting Linux environments.

Certifications

Preferred certifications include:

• CompTIA Linux+, Red Hat RHCSA/RHCE, CompTIA Security+

Skills

• Strong CLI experience.
• Experience with virtualization technologies.
• Familiarity with configuration management or orchestration tools.
• Ability to support environments with both Windows Server and Linux Servers and Endpoints.
• Experience working in compliance driven environments implementing Access controls, SELinux, and FIPS 140-2/3.
• Strong analytical and problem-solving skills.
• Excellent verbal and written communication skills for assisting non-technical stakeholders.
• Strong attention to detail and organizational skills.
• Ability to work independently or collaboratively in a fast-paced setting.

We Take Care of Our People

Whether you’re looking to launch a new career or grow an existing one, Trideum is the type of company where you can balance great work with great life because we believe that taking care of our people is the right thing to do. Trideum offers:

• 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.

Ready to Apply?

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Equal Opportunity Employer

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, age, disability, veteran status, genetic information, sexual orientation, gender identity, or any other characteristic protected by law. People with disabilities who need a reasonable accommodation to apply or compete for employment with Trideum may request such accommodation(s) by contacting Human Resources at 256.704.6123 or [email protected].