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Junior Linux System Administrator Jobs in Texas (NOW HIRING)

Esolvit Inc

Linux System Administrator

Austin, TX

Linux System Administrator (#1728) Location: Austin,TX Preferred C2H Requirement Duration: 6+ Months Experience: Senior level Linux engineer Strong experience with RHEL (5, 6, and 7) and Windows AD ...

Set of X

Linux System Administrator

San Antonio, TX · On-site

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

Configure, administer, monitor, and maintain Linux operating systems. * Support servers, storage, networks, mobile devices, and other IT infrastructure. * Install, configure, patch, and troubleshoot ...

Set of X

Linux System Administrator

San Antonio, TX · On-site

$110K - $190K/yr

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

Configure, administer, monitor, and maintain Linux operating systems. * Support servers, storage, networks, mobile devices, and other IT infrastructure. * Install, configure, patch, and troubleshoot ...

MRI Technologies

HPC Linux System Administrator

Houston, TX · On-site

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

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 ...

MRI Technologies

HPC Linux System Administrator

Houston, TX · On-site

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

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 ...

MRI Technologies

HPC Linux System Administrator

Houston, TX

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

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 ...

Amentum

HPC Linux System Administrator

Houston, TX · On-site

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

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?

Mclaurin Aerospace

HPC Linux System Administrator

Houston, TX · On-site

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

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 ...

Mclaurin Aerospace

HPC Linux System Administrator

Houston, TX · On-site

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

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 ...

Esolvit Inc

Linux System Administrator

Austin, TX

Senior level Linux engineer Strong experience with RHEL (5, 6, and 7) and Windows AD Experience ... and system standardization Scripting experience required, prefer BASH, Python, Perl, etc.

MRI Technologies

HPC Linux System Administrator

Houston, TX · On-site

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

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 ...

Pae

HPC Linux System Administrator

Houston, TX

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

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?

Avcend

Linux System Admin

Plano, TX · On-site

* We are seeking a skilled and experienced System Administrator to join our team to manage and support our Linux-based private cloud infrastructure. Ideal candidate to ensure the stability, integrity ...

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Junior Linux System Administrator information

See Texas salary details

$55.9K

$97.7K

$122K

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

As of Aug 16, 2026, the average yearly pay for junior linux system administrator in Texas is $97,730.00, according to ZipRecruiter salary data. Most workers in this role earn between $81,100.00 and $115,100.00 per year, depending on experience, location, and employer.

What are some common challenges faced by junior Linux system administrators during their first year on the job?

Junior Linux System Administrators often encounter challenges such as troubleshooting unfamiliar system errors, managing time effectively when handling multiple support tickets, and quickly adapting to new tools or scripting languages. It's common to feel overwhelmed by the breadth of Linux commands and the need to understand various server environments. However, most teams provide mentorship and structured onboarding to help new admins gain confidence, and collaboration with experienced colleagues is encouraged for problem-solving and skill development.

What is the difference between Junior Linux System Administrator vs Linux Support Technician?

AspectJunior Linux System AdministratorLinux Support Technician
CertificationsLinux+, LPIC-1Linux+, CompTIA A+
Work EnvironmentServer management, system configuration, troubleshootingHelp desk, user support, issue resolution
Industry UsageIT departments, data centers, hosting providersIT support teams, customer service roles

The Junior Linux System Administrator typically handles server setup, maintenance, and troubleshooting, requiring more technical skills. In contrast, a Linux Support Technician focuses on user support and issue resolution, often with less emphasis on server management. Both roles share certifications like Linux+ but differ in daily responsibilities and work environments.

What does a junior Linux system administrator do?

A Junior Linux System Administrator is responsible for assisting in the installation, configuration, and maintenance of Linux-based systems. They help monitor system performance, apply updates and patches, and support users with technical issues related to Linux servers. Their role often includes troubleshooting basic network or software problems and escalating more complex issues to senior administrators. This position is typically an entry-level role, providing a foundation for a career in system administration.

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

To thrive as a Junior Linux System Administrator, you need a solid understanding of Linux operating systems, basic networking, and scripting, typically supported by a relevant degree or certifications like CompTIA Linux+ or LPIC-1. Familiarity with command-line tools, monitoring software, and configuration management systems such as Ansible or Puppet is commonly required. Strong problem-solving abilities, attention to detail, and effective communication help you excel in troubleshooting and collaborating with team members. These skills and qualities are crucial for ensuring system reliability, efficiency, and quick resolution of technical issues.

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 cities in Texas are hiring for Junior Linux System Administrator jobs?

Cities in Texas with the most Junior Linux System Administrator job openings:

Junior Linux System Administrator jobs near you
Infographic showing various Junior Linux System Administrator job openings in Texas as of August 2026, with employment types broken down into 80% Full Time, and 20% Contract. Highlights an 100% In-person job distribution, with an average salary of $97,730 per year, or $47 per hour.

Linux System Administrator

G6 Cyber Solutions

San Antonio, TX • On-site

Full-time

Re-posted 13 days ago

Job description

Job Summary:
G6 Cyber Solutions is at the forefront of delivering innovative technology solutions that enhance national security and support critical military operations. They are seeking a motivated and mission-oriented Linux System Administrator to manage and secure internal systems, ensure compliance with Department of War standards, and optimize network infrastructure in a classified environment.
Responsibilities:
• Manage the development, documentation, maintenance, and security of internal systems, including design, configuration, installation, administration, optimization, integration, and integrity.
• Performing network and system security administration, including operating system security configuration, performance monitoring, and account management best practices for MS Servers/Windows and Linux.
• Configure and assist in the design of system and network security.
• Track and monitor patching and STIG applications to the network servers to maintain network health.
• Provide support in restoring critical system services and ensure timely installation of applicable operating system and server software patches.
• Document system infrastructure for users, support personnel, developers, information assurance personnel, and accreditors.
• Managing networking switches, routers, and firewalls, including configuration, monitoring, and troubleshooting in DoD-compliant environments to ensure secure data flow and network integrity.
Qualifications:
Required:
• Experience in system administration, including design, configuration, installation, and optimization of operating systems (Windows, Linux).
• Proven experience in managing hardware, software, and utilities for installation, modification, troubleshooting, maintenance, and upgrades of operating systems on servers.
• Experience in monitoring and analyzing resource usage to recommend enhancements to system capabilities and performance.
• Familiarity with developing accreditation documentation, including Overview 1, 2, and 3 (OV1, OV2, OV3) charts and graphs.
• Experience in restoring critical system services within service level agreement timelines of a system outage and managing software patching within specified timeframes (i.e. 3 business days for critical systems and 10 business days for routine patches).
• Experience in scanning computer networks for vulnerabilities and diagnosing network connectivity issues.
• Understanding of both Linux and Windows command-line interfaces (CLI).
• CompTIA Security+
• Red Hat Certified System Administrator (RHCSA)
• Active TS/SCI clearance
Preferred:
• Experience in Department of War intelligence communities.
• Experience with security features and/or vulnerabilities of various operating systems as defined by NSA, NIST, and/or USCYBERCOM.
• Experience in developing automated scripts for system monitoring and maintenance.
• Experience with Information Assurance (IA) vulnerability identification/remediation/testing and related network and system test tools (e.g., Security Content Automation Protocol (SCAP)).
• Experience with information security toolsets such as anti-virus, Security Information and Event Management (SIEM), and/or Host-based Intrusion Detection Systems/Network Intrusion Detection Systems (HIDS/NIDS).
• Experience with the Red Hat OpenShift platform.
• Additional certifications in system administration or cybersecurity.
Company:
G6 Cyber Solutions provides cybersecurity, technology, and information operations services. Founded in 2022, the company is headquartered in San Antonio, USA, with a team of 11-50 employees. The company is currently Early Stage.

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