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Linux System Administrator Per Diem Jobs (NOW HIRING)

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 ...

BAE Systems

Linux System Administrator

Vicksburg, MS

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 ...

Leidos

Linux System Administrator

Huntsville, AL

$92K - $166K/yr

Leidos-Dynetics, within our Corporate Information Security Office (CISO and reporting through our Digital Modernization sector, is seeking a motivated Linux Systems Administrator to become a part of ...

Leidos

Linux System Administrator

Huntsville, AL · On-site

$92K - $166K/yr

Leidos-Dynetics, within our Corporate Information Security Office (CISO and reporting through our Digital Modernization sector, is seeking a motivated Linux Systems Administrator to become a part of ...

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Linux System Administrator Per Diem information

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$20

$51

$75

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

As of Jul 24, 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 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.

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, and why are they important?

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.
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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 July 2026, with employment types broken down into 1% As Needed, 86% Full Time, 10% Part Time, 1% Temporary, and 2% Contract. Highlights an 94% Physical, 2% Hybrid, and 4% Remote job distribution, with an average salary of $108,079 per year, or $52 per hour.
Linux System Administrator

Linux System Administrator

Altamira Technologies Corp.

Chantilly, VA • On-site

Full-time

This job post has expired today. Applications are no longer accepted.

Job description

Linux System Administrator
Altamira Technologies has a long and successful history providing innovative solutions throughout the U.S. National Security community. Headquartered in McLean, Virginia, Altamira serves the defense, intelligence, and homeland security communities worldwide by focusing on creating innovative solutions leveraging common standards in architecture, data and security. Altamira believes that our people and the culture of our company differentiate us from other companies.
We focus on recruiting talented, self-motivated employees that strive to find a way to get things done. Join our team of experts as we engineer national security! 
Description: Candidates will work in a Linux environment for a Cross Domain Solution (CDS), contributing to its sustainment and evolution. This position requires the application of expertise on multiple complex scripting, development, and work-around assignments that may be broad in nature and require originality and innovation in determining how to accomplish tasks. Qualified candidates will have appreciable latitude in developing methodology, presenting solutions to problems, and contributing to deliverables. 
Location: Chantilly, VA
The Role: Altamira requires Linux system administration support for the development, testing, deployment, operation, and maintenance of various mission-critical applications and services. A primary focus of this position is to provide system administration, configuration, and support tools to maintain and monitor the health of a large data transfer and message processing infrastructure. While the software development team is responsible for the development and customization of the applications, our client requires administration and enhancement of a data metrics collection and dashboarding system to allow simplified operator supervision of the performance of the overall system. Additional tasks include assisting with SNMP monitoring and data metrics collection in a diverse architecture. 

Skills: Linux system administration experience conducting system virtualization, user account management, application update repository maintenance, experience in the creation and management of Ansible playbooks for the automation of tasks, maintenance and usage of Git repositories, and version control. Eagerness to learn and contribute to the overall enhancement of the existing tasks for the maintenance of the system and support applications.

Top Skills:  

  • Red Hat Linux 7/8/9 
  • Ansible 
  • Git version control 
  • Docker 
  • Python and Bash scripting 
  • Experience with virtualization technologies such VMWare ESXi and ProxMox 
Additional Skills and Qualifications: TS/SCI with CI Poly Needed! Active monitoring and sustaining the operations of geographically distributed Linux-based applications to meet service-level agreements. This is to include patching, troubleshooting, debugging, and the creation of workaround solutions. Incident response management for the CDS solutions. Interface with federal personnel to communicate SLA metrics and remediation of incidents. Scripting and possible software development to automate Operations and Maintenance. Potential development of sensors to accelerate the detection of failed systems. Development of documentation for operations, sustainment, and user guides.

The anticipated salary range for this position is $120,000 to $160,000. Actual compensation will be determined based on several factors, including, but not limited to, the scope of the position, relevant experience, education, certifications, internal equity, customer contractual requirements, security clearance requirements, and other legitimate business considerations.