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Linux System Administrator Contract Temporary Jobs in Arizona

Areté

Linux Systems Administrator

Tucson, AZ · On-site

They are seeking a mid-level Linux System Administrator to support Department of Defense programs ... contracts. • Install, secure, and maintain Red Hat Enterprise Linux (RHEL) systems across ...

Geologics

Linux Administrator

Scottsdale, AZ

$65/hr

Secret clearance RATE RANGE: $65.00/hr - 73.50/hr W2 contract with limited benefits contract or ... This role combines Linux system administration with cloud infrastructure expertise to ensure ...

Geologics

Linux Administrator

Scottsdale, AZ · On-site

$65/hr

Secret clearance RATE RANGE: $65.00/hr - 73.50/hr W2 contract with limited benefits contract or ... This role combines Linux system administration with cloud infrastructure expertise to ensure ...

Arete Associates

Linux Systems Administrator

Tucson, AZ · On-site

$85K - $125K/yr

We are seeking a mid-level Linux System Administrator to support multiple Department of Defense ... S. Citizenship required due to DoD contract and clearance requirements. * Able to obtain a FAA ...

DCM Infotech Limited

Linux System Admin

Phoenix, AZ · On-site

Required Skills • 8+ years of Linux System Administration experience. • Strong expertise in: o Red Hat Enterprise Linux (RHEL) o CentOS o Ubuntu Linux o Unix/Linux Administration • Experience ...

New

AMERICAN SYSTEMS

Linux Systems Administrator I

Phoenix, AZ · On-site

$61K - $95K/yr

As a Linux Systems Administrator I, you will provide support for our enterprise-level Linux-based ... Strong understanding of the Linux operating system, including the command line interface and basic ...

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Linux System Administrator Contract Temporary information

What is the difference between Linux System Administrator Contract Temporary vs Linux System Engineer?

AspectLinux System Administrator Contract TemporaryLinux System Engineer
CredentialsTypically requires Linux certifications (e.g., LPIC, RHCSA)Similar certifications, often with additional engineering or scripting skills
Work EnvironmentContract roles, often short-term, in various organizationsPermanent or long-term roles, focusing on system design and optimization
Employer UsageUsed by companies needing temporary expertise or project-based workUsed by organizations for ongoing system development and engineering

The main difference lies in the role's duration and scope. Contract Temporary positions focus on short-term tasks, troubleshooting, and maintenance, while Linux System Engineers are involved in designing, implementing, and optimizing Linux systems for long-term use.

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What job categories do people searching Linux System Administrator Contract Temporary jobs in Arizona look for? The top searched job categories for Linux System Administrator Contract Temporary jobs in Arizona are:
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Linux System Administrator Contract Temporary jobs near you
Infographic showing various Linux System Administrator Contract Temporary job openings in Arizona as of June 2026, with employment types broken down into 88% Full Time, 6% Temporary, and 6% Contract. Highlights an 100% In-person job distribution.
Linux Systems Administrator

Linux Systems Administrator

Areté

Tucson, AZ • On-site

Full-time

Posted yesterday

Job description

Job Summary:
Areté is at the forefront of innovative solutions to tackle complex security challenges. They are seeking a mid-level Linux System Administrator to support Department of Defense programs by designing, installing, and configuring cyber-compliant systems and networks, ensuring mission readiness and security compliance.
Responsibilities:
• Design, build, configure, and validate local, fielded, prototype, and low-volume production systems in support of multiple DoD contracts.
• Install, secure, and maintain Red Hat Enterprise Linux (RHEL) systems across development, lab, and operational environments.
• Implement and validate cyber-compliant configurations, including: DISA STIG application and remediation, RMF control implementation and sustainment, SCAP and ACAS vulnerability scanning and mitigation
• Support the design, installation, and configuration of systems and networks of varying complexity.
• Collaborate with IT staff, Cyber Security teams, systems engineers, and program personnel to ensure system security and mission readiness.
• Prepare systems and associated documentation for customer acceptance, deployment, and fielding activities.
• Troubleshoot system, network, and security issues in lab and deployed environments.
• Travel occasionally to customer sites, field locations, or integration events.
• Provide limited after-hours support during critical build, deployment, or maintenance windows.
• Develop and maintain technical documentation, system build procedures, and compliance artifacts.
• Other duties, as assigned.
Qualifications:
Required:
• 3–5 years of experience as a Linux System Administrator supporting production, lab, or deployed systems.
• Strong hands-on experience with Red Hat Enterprise Linux (RHEL) administration.
• Experience implementing DoD cybersecurity compliance requirements, including DISA STIGs, RMF, SCAP, and ACAS.
• Experience building, configuring, or deploying systems used in mission-critical or fielded environments.
• Understanding of networking fundamentals (DNS, routing, firewalls, VLANs, SSH).
• Experience with scripting or automation (e.g., Bash, Python).
• Ability to collaborate effectively with IT, Cyber Security, engineering, and program teams.
• Willingness and ability to travel occasionally.
• Willingness to provide limited after-hours support as required by program needs.
• Must be able to obtain and maintain a Top Secret (TS) security clearance.
• U.S. Citizenship required due to DoD contract and clearance requirements.
• Able to obtain a FAA Level 3 Medical Certification from an FAA-designated Aviation Medical Examiner.
• Must be able to lift 25 pounds.
Preferred:
• Active Top Secret (TS) security clearance.
• DoD 8570/8140 certification (e.g., Security+ CE or higher).
• Red Hat certifications (RHCSA, RHCE).
• Experience with virtualization platforms (VMware, KVM).
• Experience supporting cyber-compliant prototype or low-volume production systems.
• Prior experience supporting operational DoD or Warfighter-focused systems.
• Familiarity with secure system architectures and network design.
• Experience with storage technologies (NFS, SAN, iSCSI).
Company:
Areté, an employee-owned company, is an advanced science and engineering company that provides innovative solutions to the most challenging technical problems faced by the United States Defense and Intelligence agencies. Founded in 1976, the company is headquartered in Los Angeles, USA, with a team of 201-500 employees. The company is currently Growth Stage.

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