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Linux System Administrator Jobs in Houston, TX (NOW HIRING)

Amentum

HPC Linux System Administrator

Houston, TX · On-site

We have an exciting opportunity for a HPC Linux System Administrator to join the team with MRI, a teammate company. Requisition Description: Are you excited about supporting NASA human spaceflight?

Pae

HPC Linux System Administrator

Houston, TX

We have an exciting opportunity for a HPC Linux System Administrator to join the team with MRI, a teammate company. Requisition Description: Are you excited about supporting NASA human spaceflight?

Collabera

Unix Admin Level II

The Woodlands, TX

The Unix System Administrator's role is to operate and tune Unix/Linux systems, servers, and related components to ensure high levels of availability and security of the supported business ...

Conch Technologies Inc

SR. System Administrator

Houston, TX · On-site

$82K - $111K/yr

Job Title: SR. System Administrator Location: Houston, TX (Hybrid) Work Location: 601 Travis Street ... The ideal candidate will have strong expertise in Windows/Linux administration, VMware ...

Venus Aerospace

Linux Systems Engineer

Houston, TX · On-site

Responsibilities : • Administer, maintain, and troubleshoot Linux servers and workstations in a production environment • Integrate Linux systems into Windows-based infrastructure (e.g., Active ...

Venus Aerospace

Linux Systems Engineer

Houston, TX · On-site

Responsibilities : • Administer, maintain, and troubleshoot Linux servers and workstations in a production environment • Integrate Linux systems into Windows-based infrastructure (e.g., Active ...

Venus Aerospace

Linux Systems Engineer

Houston, TX · On-site

Responsibilities : • Administer, maintain, and troubleshoot Linux servers and workstations in a production environment • Integrate Linux systems into Windows-based infrastructure (e.g., Active ...

Venus Aerospace

Linux Systems Engineer

Houston, TX

Administer, maintain, and troubleshoot Linux servers and workstations in a production environment * Integrate Linux systems into Windows-based infrastructure (e.g., Active Directory, authentication ...

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Linux System Administrator information

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How much do linux system administrator jobs pay per hour?

As of Jul 29, 2026, the average hourly pay for linux system administrator in Houston, TX is $49.62, according to ZipRecruiter salary data. Most workers in this role earn between $39.23 and $59.66 per hour, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a Linux System Administrator, and why are they important?

To thrive as a Linux System Administrator, you need a strong understanding of Linux operating systems, system troubleshooting, and networking, often supported by a degree in computer science or related certifications like CompTIA Linux+ or Red Hat Certified System Administrator (RHCSA). Familiarity with command-line interfaces, shell scripting, system monitoring tools, and configuration management systems like Ansible or Puppet is essential. Problem-solving abilities, attention to detail, and effective communication are standout soft skills in this role. These skills and qualities ensure reliable system performance, quick resolution of technical issues, and smooth collaboration within IT teams.

What are some common challenges faced by Linux System Administrators when managing large-scale server environments?

Linux System Administrators often encounter challenges such as maintaining consistent configurations across numerous servers, ensuring security compliance, and minimizing downtime during updates or maintenance. Managing automation tools, such as Ansible or Puppet, and monitoring system performance are also critical aspects. Effective communication and collaboration with development and network teams are essential to quickly resolve issues and implement new technologies smoothly.

What is the difference between Linux System Administrator vs Network Administrator?

AspectLinux System AdministratorNetwork Administrator
CertificationsLinux+, LPIC, RHCSACompTIA Network+, Cisco CCNA
Work EnvironmentServers, data centers, cloud platformsNetworking hardware, routers, switches
ResponsibilitiesManaging Linux servers, scripting, securityConfiguring networks, troubleshooting connectivity
Industry UsageIT, hosting, cloud servicesTelecommunications, enterprise networks

While both roles involve IT infrastructure, a Linux System Administrator focuses on managing Linux servers and related software, whereas a Network Administrator specializes in maintaining and troubleshooting network hardware and connectivity. Both roles require specific certifications and are vital in ensuring smooth IT operations within organizations.

What Is a Linux System Administrator?

A Linux system administrator— or sysadmin—is an information technology professional who oversees the lifespan of Linux software installed on a server, computer, or other pieces of hardware, including network devices. As a Linux sysadmin, your responsibilities include software installation, day-to-day maintenance of applications, and an overall understanding of Linux operating systems. As part of the daily maintenance team, your job is to monitor system health and ensure that security patches are up-to-date, so that network systems perform well for business users.

What are Linux System Administrators?

Linux System Administrators are IT professionals responsible for installing, configuring, maintaining, and troubleshooting Linux-based operating systems and servers. They ensure the stability, security, and performance of Linux systems, manage user accounts, implement backups, and handle software updates. Their role often includes monitoring system health, automating routine tasks using scripts, and providing technical support to users. Linux System Administrators play a critical role in managing the underlying infrastructure that supports applications and services in many organizations.
More about Linux System Administrator jobs
What are the most commonly searched types of Linux System Administrator jobs in Houston, TX? The most popular types of Linux System Administrator jobs in Houston, TX are:
What are popular job titles related to Linux System Administrator jobs in Houston, TX? For Linux System Administrator jobs in Houston, TX, the most frequently searched job titles are:
What job categories do people searching Linux System Administrator jobs in Houston, TX look for? The top searched job categories for Linux System Administrator jobs in Houston, TX are:
What cities near Houston, TX are hiring for Linux System Administrator jobs? Cities near Houston, TX with the most Linux System Administrator job openings:
Linux System Administrator jobs near you
Infographic showing various Linux System Administrator job openings in Houston, TX as of July 2026, with employment types broken down into 85% Full Time, and 15% Contract. Highlights an 100% In-person job distribution, with an average salary of $103,212 per year, or $49.6 per hour.

HPC Linux System Administrator

MRI Technologies

Houston, TX • On-site

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 12 days ago

Job description

MRI Technologies has an exciting opportunity for an HPC Linux System Administrator on the JETS II contract at NASA Johnson Space Center. You will support the Flight Sciences Laboratory (FSL), one of JSC's primary computing facilities-over 700 machines, 26,000 cores, and 10+ petabytes of storage serving more than 1,000 users. The analyses running on FSL infrastructure support nearly every major NASA program, including International Space Station (ISS), Orion, Space Launch System (SLS), Commercial Crew, Human Landing System (HLS), Moon Base, and many others.
You will work with a team of HPC System Administrators to build and maintain all FSL services. This will include High Performance Compute (HPC) administration, high-end Linux workstation administration, high-speed networking, and high-speed parallel filesystem administration. A core part of the role is bringing a deep understanding of container technologies and how best they can be used in an HPC environment-FSL uses containers so users can bring their own environments (often older OS versions or older package stacks) into the cluster. Day-to-day tasks include investigating system problems, proactively monitoring system health, and working with FSL users to make sure they can support the NASA human spaceflight mission.
What We Are Looking For
Requirements:
  • Typically requires a bachelor's degree or equivalent certification in a related area, with a minimum of 5 years of experience in the field or in a related area
  • Linux system administration
  • System configuration management
  • Container-based HPC workflows
  • Complex CI/CD workflows
  • HPC job scheduler administration
  • Experience with large-scale system administration, with 2 of those years in HPC administration
  • Demonstrated problem-solving, planning, and communication skills
  • Ability to work effectively in a team environment

Preferences:
  • RedHat-based systems
  • Container technology such as Docker, Podman, and Apptainer
  • Lustre high-speed parallel filesystems
  • InfiniBand high-speed networking
  • Ansible / Foreman for configuration management
  • SLURM resource manager
  • SPACK software manager
  • Log consolidation and monitoring
  • Git/GitLab and software development (CI/CD)
  • Johnson Space Center campus network
  • NASA security mechanisms (security plans, POAMs, ATOs, Risk Assessments)

This position has been posted at multiple levels. Depending on your experience and business needs, we may consider candidates at any level for which the position is advertised.
Benefits and Perks
We offer a comprehensive benefits package including medical, dental, vision, company paid life and disability insurance, paid time off, and 401(k). You'll also enjoy a 9/80 work schedule (every other Friday off, when applicable), and the chance to work in one of JSC's most critical computing environments supporting human spaceflight.
Proof of U.S. Citizenship or U.S. Permanent Residency is a requirement for this position.
MRI Technologies is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or protected veteran status.
As we are a Federal Contractor, most positions require the employee to obtain and maintain a U.S. Government background investigation. MRI also completes a pre-screening background check for anyone offered employment.

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