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Senior Linux System Administrator Jobs in Texas (NOW HIRING)

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?

Linux Administrator

San Antonio, TX · On-site

$125K - $135K/yr

GovCIO is currently seeking a Senior Linux Administrator to support the installation, configuration, maintenance, and optimization of Linux based systems in support of 616th Operations Center (616 OC ...

Linux Administrator

San Antonio, TX · On-site

$125K - $135K/yr

GovCIO is currently seeking a Senior Linux Administrator to support the installation, configuration, maintenance, and optimization of Linux based systems in support of 616th Operations Center (616 OC ...

The Linux Systems Administrator is responsible for the installation, configuration, maintenance, and support of Linux-based systems and related infrastructure. This role ensures system reliability ...

Senior. 10 Years of Experience. Job Title: Linux RHEL System Administrator Overview We are seeking a Linux RHEL System Administrator with strong foundational expertise in Red Hat Enterprise Linux ...

Showing results 21-40

Senior Linux System Administrator information

See Texas salary details

$20.5K

$118.5K

$166.3K

How much do senior linux system administrator jobs pay per year?

As of Aug 7, 2026, the average yearly pay for senior linux system administrator in Texas is $118,532.00, according to ZipRecruiter salary data. Most workers in this role earn between $99,700.00 and $139,700.00 per year, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a senior Linux system administrator?

To thrive as a Senior Linux System Administrator, you need deep expertise in Linux/UNIX system administration, scripting, networking, and troubleshooting, typically backed by several years of industry experience and a relevant degree or certifications like RHCE or CompTIA Linux+. Proficiency with tools such as Ansible, Puppet, Docker, and monitoring platforms, as well as experience with cloud environments, is highly valued. Strong problem-solving abilities, communication skills, and the capacity to mentor junior team members are crucial soft skills. These abilities are essential for ensuring reliable system uptime, seamless team collaboration, and effective response to complex IT challenges.

What is a senior Linux system administrator?

A Senior Linux System Administrator is responsible for managing, configuring, and maintaining Linux-based systems and servers. They handle system performance tuning, security hardening, troubleshooting, and automation through scripting and configuration management tools. Additionally, they oversee backups, software updates, and infrastructure reliability. This role often involves mentoring junior administrators and collaborating with development and IT teams to support business operations.

What are the typical daily responsibilities of a senior Linux system administrator?

Senior Linux System Administrators are responsible for managing, maintaining, and optimizing Linux-based servers and infrastructure. Their daily tasks often include monitoring system performance, managing user permissions, applying security patches, automating processes through scripting, and troubleshooting technical issues. They regularly collaborate with developer, security, and operations teams to support new deployments and ensure system reliability. Additionally, they may mentor junior administrators and contribute to designing infrastructure improvements, making this a dynamic and influential role within IT operations.

What are the most commonly searched types of Linux System Administrator jobs in Texas? The most popular types of Linux System Administrator jobs in Texas are:
What are popular job titles related to Senior Linux System Administrator jobs in Texas? For Senior Linux System Administrator jobs in Texas, the most frequently searched job titles are:
What job categories do people searching Senior Linux System Administrator jobs in Texas look for? The top searched job categories for Senior Linux System Administrator jobs in Texas are:
What cities in Texas are hiring for Senior Linux System Administrator jobs? Cities in Texas with the most Senior Linux System Administrator job openings:
What are popular job titles related to Senior Linux System Administrator jobs in TX? For Senior Linux System Administrator jobs in TX, the most frequently searched job titles are:
Infographic showing various Senior Linux System Administrator job openings in Texas as of August 2026, with employment types broken down into 82% Full Time, 2% Part Time, and 16% Contract. Highlights an 86% In-person, and 14% Remote job distribution, with an average salary of $118,532 per year, or $57 per hour.

HPC Linux System Administrator

Mclaurin Aerospace

Houston, TX • On-site

Full-time

Medical, Dental, Vision, Life

Posted 28 days ago


Job description

Are you passionate about human space exploration, understanding the origins of the universe, and working with a passionate and diverse team to make a difference? If you are, we need you! We need your talent, teamwork, and energy to help us achieve great things that inspire people all over the globe. We need you to bring creative ideas and diverse backgrounds to help us envision, shape, and deliver systems that will enable the exploration of space while benefiting people here on Earth. We are excited about what we do, and we need you on our team as we take on exciting challenges for NASA's pursuits in deep space exploration. We have an exciting opportunity for a HPC Linux System Administrator to join our JETS II contract team at NASA Johnson Space Center in Houston, TX. If selected you will: The FSL is one of JSC's primary compute labs and hosts a wide variety of analyses, which support all human-spaceflight programs at NASA including the International Space Station (ISS), Orion, Space Launch System (SLS), Commercial Crew Program, Human Landing System (HLS), Moon Base and many others. The FSL systems are currently comprised of over 700 machines, 26,000 cores and over 10 PB of storage, which serve more than 1000 users.In this position you will be working 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, High-speed parallel filesystem administration, and more.Some of the skillset we are looking for this position is a deep understanding of container technologies and how best they can be used in a High Performance Compute (HPC) environment.The FSL System Administration Team is critical in supporting the FSL users in effectively utilizing the systems. The team's 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.Qualifications: This position has been posted at multiple levels. Depending on the candidate's experience, requirements, and business needs, we reserve the right to consider candidates at any level for which this position has been advertised.Typically requires a bachelor's degree or equivalent certification in a related area and a minimum of 5 years of experience in the field or in a related area.Experience in the following areas is needed for this position:Linux system administrationSystem configuration managementContainer Based HPC WorkflowsComplex CI/CD WorkflowsHPC job scheduler administrationDemonstrated problem solving, planning, and communication skillsAbility to work in a team environmentExperience with large-scale system administration, with 2 of those years in HPC administration.Preferred Qualifications: Familiarity with the following is preferred but not required for the position:RedHat-based systemsContainer Technology like Docker, Podman, and ApptainerLuster High-speed Parallel FilesystemsInfiniBandAnsible / ForemanSLURM resource managerSPACK software managerLog consolidation and monitoringGit/Gitlab and software development (CI/CD)Johnson Space Center campus networkNASA security mechanisms (security plans, POAMs, ATOs, Risk AssessmentsBenefits Competitive payPositive work-life balance100% Employer paid insurance including: Medical, dental, vision, life insurance, accidental death and dismemberment, short-term disability, and long-term disability11 paid holidays annuallyGenerous PTO401k after 12 months of service with employer match Education assistanceRelocation assistance (if applicable) Mclaurin is a unique organization with a special focus on combining the best features of research and industry in order to foster innovation. Our organization strongly supports research, publication, and engagement with the academic community. We encourage our employees to remain on the cutting edge of new developments in their respective disciplines. US Citizenship and the ability to pass a comprehensive security background investigation is required. Mclaurin 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, veteran status or other characteristics protected by law.