Linux System Administrator

Intuitive Research and Technology Corporation; Huntsville (AL); On-site; USD 85,000 - 120,000; Full time

Job summary

Intuitive Research and Technology Corporation is seeking an experienced Linux professional to manage and secure our Linux-based infrastructure in classified and unclassified environments in Huntsville, AL. The role includes OS installation, patching, hardening, backups, and lifecycle management, with collaboration across cybersecurity, network, and application teams.

The ideal candidate has 3+ years of experience, strong Linux security knowledge, and familiarity with RHEL/Ubuntu, AD integration,

Qualifications

• BS or BA degree required.
• 3+ years of related experience required.
• Experience administering Linux servers with RHEL and Ubuntu.
• Strong understanding of Linux security and system administration.
• Networking fundamentals (TCP/IP, DNS, routing, firewalls).
• Experience with CMMC/NIST environments.
• Experience with Microsoft AD and Linux/AD integration.
• Ability to obtain/maintain a security clearance.

Responsibilities

• Manage, maintain, secure, and enhance Linux-based infrastructure across classified and unclassified environments.
• Perform OS installation, configuration, patching, upgrades, vulnerability remediation, hardening, backups, and lifecycle management.
• Develop and improve tools; maintain technical documentation for configurations and changes.
• Collaborate with cybersecurity, network, infrastructure, and application teams to ensure secure, reliable systems.

Skills

Linux administration

Security concepts

Networking fundamentals

Active Directory integration

Security clearance eligibility

CMMC/NIST knowledge

Education

BS or BA degree

Tools

RHEL

Ubuntu

Job description

INTUITIVE® is a nationally recognized Best Place to Work that provides solutions from design through production to sustainment by delivering targeted results. Our approach couples the latest technology with engineering expertise and analytical proficiency while remaining true to genuine customer relationships and a culture that fosters growth and opportunity. Our diverse portfolio of capabilities and extensive customer base allows our employees countless opportunities to pursue their passions and support our nation’s Warfighters. Join our team that encourages creativity, welcomes initiative, and seeks excellence. Start Building Your Future today!

We are seeking an experienced Linux professional to manage, maintain, secure, and enhance our Linux-based infrastructure across classified and unclassified environments. This role consists of operating system installation, configuration, patching, upgrades, vulnerability remediation, system hardening, backups, performance monitoring, and lifecycle management. Additionally, you will be developing and improving tools, as well as maintaining technical documentation for system configurations, procedures, and changes. You will work closely with cybersecurity, network, infrastructure, and application teams to maintain secure and reliable systems while supporting organizational and DoW cybersecurity requirements.

Required

• BS or BA degree
• 3+ years of related experience
• Experience administering Linux servers with RHEL and Ubuntu
• Strong understanding of Linux security and system administration
• Knowledge of networking fundamentals, including TCP/IP, DNS, routing, firewalls, and common network services
• Experience supporting CMMC, NIST 800-171, or NIST 800-53 environments
• Experience with Microsoft Active Directory and Linux/AD integration
• Must have the ability to obtain or maintain a security clearance

Disability Accommodation for Applicants

Intuitive Research and Technology Corporation is an Equal Employment Opportunity employer and provides reasonable accommodation for qualified individuals with disabilities and disabled veterans in its job application procedures. If you have any difficulty using our online system and you need an accommodation due to a disability, you may use the following alternative email address or phone number to contact us about your interest in employment at INTUITIVE [e-mail] or 256-922-9300. Our process is to respond and to work with the requestor to identify a workable accommodation to the application process.