Linux / Unix Systems Administrator Jobs in Dallas, TX

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Lead Linux Administrator

Dunhill Professional Search

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Dallas, Texas, USA

Full-time

Lead Linux Administrator ship Required Fully Telework Attention experienced Linux Administrators! We are looking for a Lead Linux Admin to join a project with the Department of Energy. This is a fully remote role! Experience managing a team and maintaining security services are desired. Job Description Responsible for unique or complex information systems and/or information technology projects across more than one discipline, such as application support, database administration, software qual
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Posted 2 days ago | Updated 2 hours ago

UNIX/Wintel System Administrator

Celer Soft LLC

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Plano, Texas, USA

Full-time, Part-time, Contract, Third Party

UNIX/Wintel System Administrator || Plano, TX || 10+ Years Main Skills, Technologies, and Methodologies: UNIX, Wintel, System Administration, Python, Perl, Shell Scripting, Operating Systems, Storage Management, Networking, TCP/IP, VLANs, UDP, Backup Procedures, Troubleshooting. About the Role: We are seeking a highly experienced UNIX/Wintel System Administrator to manage and maintain our critical systems. The ideal candidate will possess a strong background in both UNIX and Windows environments
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Posted 60+ days ago | Updated moments ago

Senior Systems Administrator (R3668)

Shield AI Inc

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Dallas, Texas, USA

Full-time

Founded in 2015, Shield AI is a venture-backed defense technology company with the mission of protecting service members and civilians with intelligent systems. Its products include the V-BAT aircraft, Hivemind Enterprise, and the Hivemind Vision product lines. With offices in San Diego, Dallas, Washington, D.C., Boston, Abu Dhabi (UAE), Kyiv (Ukraine), and Melbourne (Australia), Shield AI's technology actively supports U.S. and allied operations worldwide. For more information, visit Follow Sh
Posted 13 days ago | Updated 9 hours ago

Sr Systems Administrator

Irvine Technology Corporation (ITC)

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Dallas, Texas, USA

Full-time

Sr. Systems Administrator We have an immediate need for a Sr. Systems Administrator to join our client for a full-time, direct hire position that is fully onsite in Dallas, NYC, Phoenix or Austin. This position will support a 90% virtualized environment within Azure and AWS. Location: Onsite in Dallas, NYC, Phoenix or Austin This job expects to pay about $110,000-130,000 benefits What You ll Do: Participate in on-call rotation, after-hours maintenance, and incident response to ensure system ava
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Posted 22 days ago | Updated moments ago

PWE Systems Administrator (ISSA) (Onsite)

RTX Corporation

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Richardson, Texas, USA

Full-time

Date Posted: 2025-07-09 Country: United States of America Location: HTX36: Richardson, TX 3200 E Renner Rd , Richardson, TX, 75082-2402 USA Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to start date.Security Clearance: DoD Clearance: Secret Collins Aerospace, Digital Technology, is hiring a Systems Administrator for our Secure Labs support team. A minimum Collateral
Posted 19 days ago | Updated 9 hours ago

Unix/Linux Administrator

Parsons Services Company

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Remote

Full-time

In a world of possibilities, pursue one with endless opportunities. Imagine Next! When it comes to what you want in your career, if you can imagine it, you can do it at Parsons. Imagine a career working with exceptional people sharing a common quest. Imagine a workplace where you can be yourself. Where you can thrive. Where you can find your next, right now. We've got what you're looking for. Job Description: This job opening is for an experienced Unix/Linux Administrator to provide systems a
Posted 60+ days ago | Updated 9 hours ago

Linux and Windows Systems Administrator | REMOTE (ship required)

Oracle Corporation

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Remote

Full-time

Job Description Building off our Cloud momentum, Oracle has formed a new organization - Oracle Health & Analytics. This team will focus on product development, operations and product strategy for Oracle Health, while building out a complete platform supporting modernized, automated healthcare. This is a net new line of business, constructed with an entrepreneurial spirit that promotes an energetic and creative environment. We are unencumbered and will need your contribution to make it a world c
Posted 3 days ago | Updated 9 hours ago

Operating Systems Specialist- Unix, Windows, & Tomcat (Night/Graveyard Shift)

Ignitec Inc.

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Remote

Contract

Operating Systems Specialist This is a Full-Time (Contract) Remote position supporting United States Postal. Full benefits, PTO, and paid holidays is inclusive to this position. Number of Available Positions: 17 Contract Term: 10/1/2025- 9/30/2026 (With possible extensions) Salary Target: $80K-$125K/YR (Salary is flexible based on the relevant years of professional experience and background related to the position) Requirements: Ability to work Night/Graveyard Shift; Prior experience in supporti
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Posted 20 hours ago

Senior Linux Systems Administrator - REMOTE

First American Financial Corporation

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Remote or Santa Ana, California, USA

Full-time

Who We Are Join a team that puts its People First! Since 1889, First American (NYSE: FAF) has held an unwavering belief in its people. They are passionate about what they do, and we are equally passionate about fostering an environment where all feel welcome, supported, and empowered to be innovative and reach their full potential. Our inclusive, people-first culture has earned our company numerous accolades, including being named to the Fortune 100 Best Companies to Work For list for ten conse
Posted 6 days ago | Updated 9 hours ago

Senior Systems Administrator (Linux/Windows)

GovCIO

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Remote

Full-time

Overview GovCIO is hiring for a Senior Systems Administrator (Linux and Windows) to provide on-going support for the administration of the core system applications and perform operational tasks such as monitoring system resources and perform routine maintenance tasks in support of 24x7 life cycle applications to include on-call support. Work location is in Washington, DC and will be a hybrid remote with periodic onsite customer work activities. Must be willing to work nights, have an active Sec
Posted 24 days ago | Updated 6 hours ago

Senior Systems Administrator

Eliassen Group

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Frisco, Texas, USA

Contract

Description: **Onsite | Frisco, TX** Our client has an amazing opportunity for a Senior Systems Administrator. The Senior Systems Administrator is responsible for supporting, securing, and optimizing enterprise IT operations. This includes end-user system support, infrastructure maintenance, IT asset lifecycle management, and leadership of junior team members. The ideal candidate brings strong technical expertise, organizational discipline, and a collaborative mindset to support a modern, scal
Posted 14 days ago | Updated 9 hours ago

Systems Administrator (Windows / Linux) / Hybrid: Highlands Ranch, CO

Lockheed Martin Corporation

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Remote or Highlands Ranch, Colorado, USA

Full-time

Job Description Lockheed Martin's Enterprise Business & Digital Transformation (EBDT) organization employees are the core of everything we do, and they are helping the future arrive. As a leading technology innovation company, our team of over 100,000 people works with partners around the world to bring proven performance to our customers' toughest challenges. Headquartered in Bethesda, MD, Lockheed Martin has employees based in all 50 states and more than 570 facilities that span 70 countries.
Posted 21 days ago | Updated 9 hours ago

Systems Administrator - Linux/Windows

GovCIO

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Remote

Full-time

Overview Provide on-going support for the administration of the core system applications and perform operational tasks such as monitoring system resources and perform routine maintenance tasks in support of 24x7 life cycle applications to include on-call support. Work location is hybrid with periodic customer site work activities. Must be willing to work nights, have a Security+ certification, and an active Top Secret clearance. Responsibilities Position Description: In this role you will: Pr
Posted 60+ days ago | Updated 6 hours ago

Oracle Linux Administrator

NuLeap

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Remote or US

Contract, Third Party

Job Summary Oracle Linux Administrator - Lead enterprise patch management and CVE remediation for Oracle Linux 7.9 and related systems. - Serve as primary escalation point for Oracle Linux support, handling Tier 1 & 2 issues and Oracle support cases. - Apply security patches, OS bug fixes, and ensure security compliance across environments. - Provide 24x7 production support for high-severity incidents and outages. - Perform root cause analysis and document all patching, changes, and updates.
Posted 5 days ago | Updated 3 days ago

Linux System Administrator, Senior

GovCIO

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Remote

Full-time

Overview GovCIO is hiring a Windows and Linux System Administrator (Senior) to support Veterans Affairs operational needs . The role requires AWS, Windows, and Linux administration experience, with strong database management skills, to maintain infrastructure and ensure system security and performance. This position is fully remote within the United States. Responsibilities Plan the transition of development and/or production environments to new technologies. Ensure data integrity and facilit
Posted 8 days ago | Updated 6 hours ago

Windows / Linux Systems Administrator - REMOTE (ship required)

Oracle Corporation

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Remote

Full-time

Job Description Building off our Cloud momentum, Oracle has formed a new organization - Oracle Health Applications & Infrastructure. This team will focus on product development and product strategy for Oracle Health, while building out a complete platform supporting modernized, automated healthcare. This is a net new line of business, constructed with an entrepreneurial spirit that promotes an energetic and creative environment. We are unencumbered and will need your contribution to make it a w
Posted 60+ days ago | Updated 9 hours ago

Linux Systems Engineer

General Dynamics

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Remote

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: None Clearance Level Must Be Able to Obtain: None Public Trust/Other Required: NACI (T1) Job Family: Systems Engineering Job Qualifications: Skills: Linux, Red Hat Ansible, Red Hat Enterprise Linux (RHEL), System Administration, Troubleshooting Certifications: None Experience: 2 + years of related experience ship Required: No Job Description: Linux Systems Engineer At GDIT, people are our differentiator. We are seeking
Posted 3 days ago | Updated 9 hours ago

Linux System Administrator

Sun Technologies,Inc.

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Remote

Contract

Job Title: Linux System Administrator Duration: up to 12 months contract (with the possibility of extension) Location: Fort Worth, TX 76108 Pay Rate: $60/hr - $70/hr on W2 [the pay rate may differ depending on your skills, education, experience, and other qualifications] Featured Benefits: Medical Insurance in compliance with the ACA401(k)Sick leave in compliance with applicable state, federal, and local laws Skills Required: The Linux Systems Administrator will be a member of the Enterprise IT
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Posted 60+ days ago | Updated 2 days ago

Cloud Ops Engineer AWS

Revature

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Dallas, Texas, USA

Full-time

About the Role: We are seeking a Cloud Ops Engineer with hands-on experience supporting enterprise infrastructure in cloud and on-premises environments. This position is ideal for candidates with a solid background in UNIX/Linux or Windows system administration and Tier 1 operations, looking to grow in the world of cloud servicesparticularly AWS. You will play a critical role in monitoring, troubleshooting, and supporting large-scale cloud environments that operate 24/7. About Revature: Revature
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Posted 1 day ago

Title: Senior Oracle Data Integrator (ODI) Developer.....Irving, Tx - W2 Position

Tech Rakers

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Irving, Texas, USA

Contract

Job Title: Senior Oracle Data Integrator (ODI) Developer Location: Irving, Tx Employment Type: Contract Experience: 8+ years Job Summary: We are seeking an experienced Senior Oracle Data Integrator (ODI) Developer to lead the development and support of complex data integration solutions. The ideal candidate will have a strong background in Oracle ODI, including hands-on experience with complex file topologies, BI Apps load plans, and Unix scripting, along with in-depth knowledge of Oracle SQL an
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Posted 22 days ago | Updated 22 days ago