Linux / Unix Systems Administrator Jobs in California

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Linux / Unix Systems Administrator, Stf - TS/SCI w/Poly- Sunnyvale, CA

Lockheed Martin Corporation

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Sunnyvale, California, USA

Full-time

Job Description About Us: Our 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 more than 70 countries. This Lockheed Martin Enterprise Operations (EO) position w
Posted 60+ days ago | Updated 10 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 10 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 10 hours ago

Lead Systems Administrator (Linux/Cloud)

Judge Group, Inc.

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Elk Grove, California, USA

Contract

Location: Elk Grove, CA Salary: $130,000.00 USD Annually - $150,000.00 USD Annually Description: Our client is seeking a Lead Systems Administrator to join their Infrastructure team. In this role, you'll be the subject matter expert (SME) overseeing the operations of their hosted datacenter and cloud infrastructure in Google Cloud Platform (Google Cloud Platform). You'll lead efforts in provisioning, automation, troubleshooting, and performance optimization across both physical and virtual e
Posted 58 days ago | Updated 7 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 22 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 10 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 8 hours ago

Linux Systems Administrator, Sr / Secret / Onsite: Sunnyvale, CA

Lockheed Martin Corporation

•

Sunnyvale, California, USA

Full-time

Job Description Join our Lockheed Martin team! Our 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 more than 70 countries. We are hiring a Linux System Adminis
Posted 60+ days ago | Updated 10 hours ago

Linux/Windows Senior Systems Administrator

Lockheed Martin Corporation

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San Diego, California, USA

Full-time

Job Description WHO WE ARE Lockheed Martin is a global leader in aerospace, defense, and technology solutions, dedicated to pushing the boundaries of innovation and shaping the future of the industry. With a rich legacy of excellence and a commitment to delivering advanced capabilities to our customers, we are proud to be at the forefront of cutting-edge technology and engineering. WHAT WE'RE DOING At Lockheed Martin, we're revolutionizing the aerospace and defense sector through groundbreakin
Posted 20 days ago | Updated 10 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 10 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 8 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/SCADA administrator - Los Angeles CA

Synergent Tech Solutions

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Los Angeles, California, USA

Contract

Linux/SCADA administrator - Engineering Tech (LINUX) Location : Los Angeles CA Duration: 6+ months contract. and Local and required F2F interview Linux/SCADA administrator local candidates strongly preferred Our direct client has an opening for an Linux/SCADA administrator/Engineering Tech for their Control System Application Services Team in downtown Los Angeles. The assignment is expected to run 6mos, with an option to extend or convert to direct employment. The work schedule is a 44/36 Mon
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Posted 22 hours ago

Linux System & Network Administrator

Psinapse Technology

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Concord, California, USA

Full-time

We are seeking a seasoned Linux System/Network Administrator with robust, hands-on experience managing and securing mixed Linux and Windows environments. The ideal candidate will possess a strong understanding of system security, infrastructure support, and IT service tools. Experience with Open Enterprise Server (OES) is a significant plus. This role requires someone with strong procedural documentation capabilities, a collaborative mindset, and technical expertise in network devices and IT pla
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Posted 3 days ago | Updated 3 days ago

IT Linux Systems Administrator - Top Secret Clearance

SpaceX

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Hawthorne, California, USA

Full-time

SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today SpaceX is actively developing the technologies to make this possible, with the ultimate goal of enabling human life on Mars. IT LINUX SYSTEMS ADMINISTRATOR - TOP SECRET CLEARANCE SpaceX is looking for an experienced Systems Administrator with deep knowledge and broad experience across Linux-based technologies and application support. The id
Posted 60+ days ago | Updated 10 hours 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 8 hours ago

Linux Administrator/SRE/DevOps Engineer

Introlligent Inc.

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Elk Grove, California, USA

Contract, Third Party

Title: SRE (Site Reliability Engineer) Location: Elk Grove, CA (Hybrid) Duration: 12months Client : Apple Minimum Qualifications: Strong sense of ownership, customer service, and integrity demonstrated through clear communication.Experience with deploying, supporting and monitoring new and existing services, platforms, and application stacks.Proficiency with Python, Bash scripts, GO, REST APIS, and any object oriented programming a must.Proficiency in using monitoring and observability tools suc
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Posted 25 days ago | Updated 19 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 10 hours ago

Systems Engineer (Linux) at Santa Clara CA - Direct Client

SolGenie Technologies, INC

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Santa Clara, California, USA

Full-time, Third Party, Contract

Role: Systems Engineer (linux) Location: Santa Clara, CA (Onsite) Duration: Long Term (3+ years) Linux with Strong Automation ,DevOps Responsibilities: Demonstrated experience in LINUX installation, configuration, and upgrading of Linux systems and servers. Linux OS administration - Ubuntu, Centos, and RedHat Demonstrable experience in Linux Server Support, designing, troubleshooting, and storage implementation. Proven experience in risk-based systems running on UNIX / LINUX platforms along wi
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Posted 2 days ago | Updated 1 day ago

Senior Systems Engineer - Linux

Photon

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Rocklin, California, USA

Contract, Third Party

Senior Systems Engineer Rocklin, CA Design and support data networks for WSI data centers, corporate facilities, retail stores, distribution centers, call centers, and eCommerce environment. Design, develop, implement, and support network solutions for IT projects. Specific Responsibilities Participates and documents systems requirements and authors solution designs Reviews and provides feedback for system design solutions that will impact their area Participates in establishing strategies and s
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Posted 50 days ago | Updated 1 day ago