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Linux System Administrator Per Diem Jobs (NOW HIRING)

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Linux System Administrator

Clarksburg, WV · On-site

$90 - $120/hr

Job Summary The Linux System Administrator (Intermediate-Level) is responsible for operating, maintaining, troubleshooting, securing, and supporting enterprise Linux-based systems and infrastructure.

MANTECH

Linux System Administrator

Laurel, MD · On-site

MANTECH seeks a motivated, career and customer-oriented Linux System Administrator to join our team in Laurel, MD. You will be part of a dedicated team delivering enterprise infrastructure ...

MANTECH

Linux System Administrator

Laurel, MD · On-site

MANTECH seeks a motivated, career and customer-oriented Linux System Administrator to join our team in Laurel, MD. You will be part of a dedicated team delivering enterprise infrastructure ...

Zachary Piper Solutions

$98 - $132/hr

Zachary Piper Solutions is seeking a Windows & Linux System Administrator to support a company focused on Research, Development, Test, and Evaluation (RDT&E) network operations and secure defense ...

New

BAE Systems

Linux System Administrator

Vicksburg, MS · On-site

BAE Systems is seeking Linux Administrators to support a team of administrators with standard Linux system administration duties at ERDC in Vicksburg, Mississippi. The selected candidate will perform ...

CACI

Linux System Administrator

Sarasota, FL · On-site

Linux System Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: Regular Percentage of Travel Required:

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Linux System Administrator Per Diem information

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$20

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$75

How much do linux system administrator per diem jobs pay per hour?

As of Sep 3, 2026, the average hourly pay for linux system administrator per diem in the United States is $51.96, according to ZipRecruiter salary data. Most workers in this role earn between $41.11 and $62.50 per hour, depending on experience, location, and employer.

What is a Linux System Administrator Per Diem?

A Linux System Administrator Per Diem is an IT professional who manages and maintains Linux-based servers and systems on an as-needed, short-term, or daily basis. Unlike full-time administrators, per diem workers are typically hired for specific projects, to cover staff absences, or to handle urgent technical issues. Their responsibilities include installing and configuring Linux servers, monitoring system performance, applying security updates, and troubleshooting problems. This flexible role is common in organizations that need expert Linux support without a permanent hire.

What are the key skills and qualifications needed to thrive as a Linux System Administrator Per Diem?

To thrive as a Linux System Administrator Per Diem, you need strong expertise in Linux operating systems, scripting, and troubleshooting, often backed by a degree in computer science or relevant certifications like RHCE or CompTIA Linux+. Familiarity with tools such as Bash, Ansible, Nagios, and virtualization platforms is typically required. Excellent problem-solving abilities, adaptability, and clear communication skills help you collaborate effectively and respond quickly to urgent system issues. These skills and qualifications are crucial to ensure system reliability, security, and efficient resolution of technical challenges in a flexible, on-call environment.

What are some unique challenges faced by Linux System Administrator Per Diem professionals, and how can they prepare for them?

Linux System Administrator Per Diem roles often involve stepping into dynamic environments with limited onboarding time, making adaptability and quick troubleshooting skills essential. Since per diem administrators frequently work on short-term projects or fill in for absent staff, they must rapidly familiarize themselves with existing system configurations, documentation, and team workflows. Proactively maintaining up-to-date knowledge of various Linux distributions and scripting languages, as well as strong communication skills, can help in collaborating effectively with permanent IT staff. Being organized and detail-oriented is key to ensuring system stability and smooth handoffs at the end of assignments.

What is the difference between Linux System Administrator Per Diem vs Linux System Administrator?

AspectLinux System Administrator Per DiemLinux System Administrator
CredentialsTypically requires Linux certifications (e.g., RHCE, CompTIA Linux+)Same as per diem, often with additional certifications preferred
Work EnvironmentContract-based, short-term projects, often on-site or remoteFull-time, permanent employment, on-site or remote
Employer & Industry UsageUsed by government agencies, contractors, or consulting firms for temporary staffingEmployed by companies across industries for ongoing IT infrastructure management

The main difference between Linux System Administrator Per Diem and Linux System Administrator lies in employment type and duration. Per diem roles are temporary, contract-based positions suited for short-term projects, while full-time Linux System Administrators have ongoing responsibilities within organizations. Both roles require similar skills and certifications, but their work arrangements differ significantly.

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Linux System Administrator Per Diem jobs near you
Infographic showing various Linux System Administrator Per Diem job openings in the United States as of August 2026, with employment types broken down into 1% As Needed, 84% Full Time, 13% Part Time, and 2% Contract. Highlights an 91% Physical, 2% Hybrid, and 7% Remote job distribution, with an average salary of $108,079 per year, or $52 per hour.

Linux System Administrator

Amatriot Group, LLC

Beavercreek, OH • On-site

$90 - $130/hr

Other

Posted 15 days ago

Job description

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*This represents the potential salary range for this position depending on education level, years of experience and/or certifications in addition to other position specific requirements which may impact salary

Position Overview

The Riverside Research Information Technology team is seeking a highly skilled and experienced Linux System Administrator to support teams that deploy software products to Department of Defense and Intelligence Community networks. The Linux System Administrator is responsible for the installation, configuration, maintenance, security, and performance of Linux-based systems and services across the enterprise environment. This role requires strong troubleshooting skills, experience with automation, and the ability to work effectively in a fast-paced environment supporting critical business systems. This position is located at the Beavercreek, Ohio office and is a short-term position ending in December 2026.

Key Responsibilities
  • Install, configure, maintain, and support Linux clients and servers in physical and virtual environments, ensuring high availability and security compliance.
  • Manage Linux operating systems, including Red Hat Enterprise Linux, Rocky Linux, Ubuntu, and other enterprise distributions.
  • Perform operating system upgrades, patch management, and security hardening.
  • Apply security updates and patches to Linux operating systems.
  • Manage user access integrated with Active Directory, LDAP, or other identity management solutions.
Troubleshooting, Monitoring, and Recovery
  • Troubleshoot and resolve server, application, storage, and network-related issues.
  • Monitor operations and applications using Linux-based logging and monitoring tools to diagnose and resolve performance issues.
  • Remediate periodic compliance scans.
  • Repair and recover from hardware or software failures.
Automation and Technical Documentation
  • Develop and maintain automation scripts using Bash, Python, Ansible, or similar tools.
  • Create and maintain technical documentation, standard operating procedures, and system diagrams.
Coordination and Communication
  • Coordinate with Tier 3 functional roles within the information technology team as needed.
  • Coordinate and communicate significant information technology changes and outages with appropriate parties, including the customer, management, and information security.
  • Perform other duties as assigned.
QualificationsEducation
  • Bachelor’s degree in Computer Science, Computer Engineering, Software Engineering, or another related field of study.
Experience
  • 5+ years of experience administering enterprise Linux environments.
  • Strong, verifiable experience in Linux system administration, including configuration, patching, user management, and security hardening.
  • Experience with automation using Ansible or similar tools.
  • Experience with virtualization technologies such as VMware vSphere.
  • Knowledge of SSH, SCP, TCP/IP networking, DNS, DHCP, and firewall concepts.
Skills
  • Self-motivated, detail-oriented, and responsible team player able to work independently with minimal daily direction.
  • Effective and efficient written and verbal communication skills.
  • Ability to work and interact with technically and organizationally diverse personnel.
Certifications
  • DoD 8140 Intermediate Certification, such as CompTIA Security+ or equivalent.
Preferred Qualifications
  • At least 5 years of experience performing systems administration.
  • Experience across the traditional IT stack, including clients, networking, servers, and storage.
  • Familiarity with enterprise PKI, SSL/TLS certificates, and security compliance frameworks.
  • Experience with Git, CI/CD pipelines, and DevOps practices.
  • Experience applying STIGs or CIS Benchmarks to Linux operating systems, Windows operating systems, network devices, ESXi hosts, or required applications.
  • Experience building systems and maintaining tools such as Bitbucket, Bamboo, GitLab, or similar tools.
  • Experience working or developing in multi-domain, multi-cloud, or hybrid-cloud environments.
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