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Senior Linux System Administrator Jobs in Texas (NOW HIRING)

Cymertek

Linux System Administrator

San Antonio, TX · On-site

Linux System Administrator LOCATION San Antonio, TX 78208 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are looking for a dedicated and skilled ...

Esolvit Inc

Linux System Administrator

Austin, TX · On-site

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

3B Staffing LLC

Linux System Administrator

Houston, TX · On-site

IT/OT System Administrator - Linux Key Responsibilities: * Install, configure, and maintain Linux and Windows servers and systems across IT and OT networks. * Perform system upgrades, apply security ...

New

3B Staffing LLC

Linux System Administrator

Houston, TX · On-site

IT/OT System Administrator - Linux Key Responsibilities: * Install, configure, and maintain Linux and Windows servers and systems across IT and OT networks. * Perform system upgrades, apply security ...

New

Set of X

Linux System Administrator

San Antonio, TX · On-site

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

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

Avcend

Linux System Admin

Plano, TX · On-site

Senior SME Level with 10-12 years of experience required * Proven experience as a Linux System Administrator * Bachelor's degree in Computer Science, Information Technology, or a related field.

Esolvit Inc

Linux System Administrator

Austin, TX · On-site

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.

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?

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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 13, 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.

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What cities in Texas are hiring for Senior Linux System Administrator jobs? Cities in Texas with the most Senior Linux System Administrator job openings:
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Senior Linux System Administrator jobs near you
Infographic showing various Senior Linux System Administrator job openings in Texas as of August 2026, with employment types broken down into 85% Full Time, 3% Part Time, and 12% Contract. Highlights an 90% In-person, and 10% Remote job distribution, with an average salary of $118,532 per year, or $57 per hour.

Sr. Linux Systems Administrator

NAVA Software Solutions

Houston, TX • On-site

Full-time

Re-posted 11 days ago

Job description

NAVA Software solutions is looking for a Sr. Linux Systems Administrator
Details:
Sr. Linux Systems Administrator
Location: Houston TX - 4 days/week onsite
Duration: 6 -12 months CTH
Seeking a Senior Linux Systems Administrator to support our System Administration team. This position requires a true senior engineer who is deeply technical, highly autonomous, and capable of co-owning Linux platform standards, automation direction, and operational excellence alongside the existing senior Linux administrators.
The candidate must bring enterprise-grade Linux expertise, strong AWS experience, robust automation capabilities, and the ability to move our Linux environment forward in efficiency, standardization, and security.
Core Linux Expertise (Required)
Enterprise Linux Administration
Candidates must demonstrate expert-level proficiency across modern Linux distributions:
  • Red Hat Enterprise Linux (primary)
  • Amazon Linux

They must be able to:
  • Troubleshoot complex OS issues (kernel, boot, networking, PAM, systemd, SSH).
  • Manage system lifecycle tasks including OS upgrades, kernel management, filesystem/partitioning, and package management (yum/dnf).
  • Interpret and apply security guidance from Rapid7, Red Hat, and AWS security advisories.
  • Assist the team with evolving OS build standards, including partitioning patterns for EC2 (LVM vs non-LVM), AMI selection, and compliance considerations.

Patching & Lifecycle Management
This team executes structured monthly Linux patch cycles for DEV, QA, PROD, and special groups, requiring a senior engineer who can:
  • Lead and improve patch management strategy across RHEL and AL2023.
  • Work within the patch calendar structure and handle outage coordination.
  • Communicate clearly with DBAs, application teams, and business owners during patch windows.
  • Troubleshoot patch regressions, dependency failures, kernel issues, and process interruptions.

Automation & Configuration Management
Automation is a major priority for this role.
Candidates must have strong hands-on capability in:
  • Ansible (primary automation tool) - including playbook development, role structure, idempotence practices, and aligning with the evolving cross-team Ansible hub and documentation strategy.
  • Bash scripting, with the ability to build robust automation used across environments.
  • Desire and capability to automate everything possible, from patching workflows to post-build server configuration and agent deployment (CrowdStrike, Splunk UF, R7, SSM, NinjaOne).
  • Assist in modernizing Linux build processes.

Automation expectations include:
  • Ability to restructure and enhance existing Ansible configurations.
  • Ability to integrate Linux tasks with the CDS team's provisioning pipelines and improve consistency.

AWS Infrastructure & EC2 Standards
This role requires a senior Linux engineer deeply familiar with AWS-based Linux hosting, including:
  • EC2 builds: instance sizing, naming standards, EBS layout, tagging requirements, subnetting, and security groups.
  • AMI selection and OS lifecycle planning (RHEL 7/8/9, AL2 retirement, AL2023 kernel planning).
  • Understanding AWS cloud account segmentation.
  • Troubleshooting access restrictions, SSH workflows, and issues related to IP-based access controls in multiple environments.

Experience with:
  • SSM automation and patching
  • Launch templates, user-data scripts

Security & Access Controls
The candidate must have strong familiarity with:
  • Linux-level auditing, SSH hardening, sudo policies, and PAM configuration.
  • Identity and access concerns including shared accounts, key rotation, and improved auditing.
  • Vulnerability remediation workflows (CVE patching, Rapid7 findings, compliance configuration).

Experience with:
  • CrowdStrike
  • Splunk
  • Rapid7
  • SSM agent

Experience with NinjaOne agent deployment for Linux is beneficial but not required.
Networking & DNS
The Senior Linux Administrator must be comfortable with:
  • Troubleshooting DNS aliasing, CNAME issues, and environment cutover scenarios.
  • Understanding VPC networking, routing, and connectivity patterns used across environments.
  • Managing secure connectivity across multiple AWS accounts and internal network segments.

Professional Expectations (Critical)
We require a senior professional who demonstrates:
  • Self-starter mindset with strong initiative and minimal need for direction.
  • High motivation to improve processes and move the Linux environment forward.
  • Strong documentation discipline, contributing to shared runbooks, build procedures, and Ansible documentation hubs.
  • Excellent communication, including the ability to explain Linux-level issues to application teams, DBAs, networking, and leadership.
  • Collaborative team player, able to work closely with the System Administration team in a fast-moving support environment.
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About NAVA Software Solutions

Sourced by ZipRecruiter

NAVA is a strategic partner for companies seeking to develop or customize software and products. Our team of experts leverages cutting-edge technology and deep industry knowledge to provide customized solutions that drive business success. Whether you're looking to improve your operations, increase efficiency, or bring a new product to market, NAVA has the expertise and resources to help you achieve your goals. Trust us to be your partner in software and product development.

Industry

It services

Company size

51 - 200 Employees

Headquarters location

Rocky Hill, CT, US

Social media

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