Linux / Unix Systems Administrator Jobs in San Francisco, CA

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Linux System & Network Administrator

Psinapse Technology

•

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

Senior Systems Administrator (Australia) - TS/SCI with Polygraph

General Dynamics

•

Hayward, California, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret SCI + Polygraph Clearance Level Must Be Able to Obtain: Top Secret SCI + Polygraph Public Trust/Other Required: None Job Family: Systems Administration Job Qualifications: Skills: Linux, System Administration, Windows Applications Certifications: None Experience: 5 + years of related experience ship Required: Yes Job Description: General Dynamics Information Technology (GDIT) is seeking an IT Engineer with Mi
Posted 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

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 / Technical Lead - Process Control Systems

Katalyst Healthcares and Lifesciences

•

Foster City, California, USA

Full-time

Job Summary: We are looking for an experienced professional who will be responsible for administration of Rockwell FactoryTalk-based process control systems and Inductive Automation's Ignition-based process control and environmental monitoring systems. The candidate should have hands-on experience deploying, configuring, and troubleshooting these systems in a Good Manufacturing Practice (GMP) environment, with a good understanding of FDA regulations. This role focuses on deploying system updates
Posted 60+ days ago | Updated 9 hours ago

Systems Administrator Senior

General Dynamics

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Hayward, California, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret/SCI Clearance Level Must Be Able to Obtain: Top Secret/SCI Public Trust/Other Required: None Job Family: Systems Administration Job Qualifications: Skills: Information Technology (IT) Systems, System Administration, VMware Certifications: None Experience: 5 + years of related experience ship Required: Yes Job Description: Please take this opportunity to join one of GDIT's fastest long-standing growing program
Posted 54 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

•

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

Intelligence Systems Administrator

General Dynamics

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Hayward, California, USA

Full-time

This is an unpaid fellowship through the Department of Defense (DoD) SkillBridge Program. The fellow selected for this role will not receive compensation or benefits from GDIT and will not be an employee, agent or contractor of GDIT but rather will remain an employee of the DoD and will receive compensation and benefits through the DoD. Type of Requisition: Regular Clearance Level Must Currently Posses: Top Secret/SCI Clearance Level Must Be Able To Obtain: Top Secret/SCI Public Trust/Other
Posted 60+ days ago | Updated 9 hours ago

Network Engineer

PROLIM Global Corporation

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Fremont, California, USA

Contract

We are seeking a skilled Network Engineer with scripting experience to support data center operations and network upgrades. This role involves executing network changes using code, collaborating with engineering teams, and leveraging documentation to ensure smooth operations. Key Responsibilities:Adjust network configurations to meet performance and capacity needsExecute changes across multiple network devices using scriptsCollaborate with internal teams to understand requirements and implement
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Posted 1 day ago

MFG Systems Administrator - 3rd Shift (Remote)

Perdue Farms, Inc.

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Remote or Salisbury, Maryland, USA

Full-time

Perdue Foods has a goal of becoming the most trusted name in premium proteins by creating products for consumers and for retail and foodservice customers around the globe while changing the way animals are raised for food. It is part of Perdue Farms, a fourth-generation, family-owned food and agricultural business deeply rooted in tradition yet with a forward-thinking mindset. We believe that success starts with our people, and our culture is built on a foundation of teamwork, integrity, and res
Posted 24 days ago | Updated 6 hours ago

Quality Assurance Tech II

Kforce Technology Staffing

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San Francisco, California, USA

Contract

RESPONSIBILITIES: Kforce has an enterprise client that is seeking a Quality Assurance Tech II in San Francisco, CA. Summary: We are seeking a talented and highly motivated Quality Assurance Engineer (QAE) for a contract position. The ideal candidate has great communication skills, can remove roadblocks, detail oriented, and has a knack for breaking websites. QAE's regularly work with Developers, Product Managers and other Quality Engineers to ensure the proper operation of the production enviro
Posted 7 days ago | Updated 2 hours ago