IT Systems Administrator jobs in California

Sr. IT Systems Administrator, Mission Systems

California

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Today

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. SR. IT SYSTEMS ADMINISTRATOR, MISSION SYSTEMS SpaceX is looking for a highly skilled and versatile Launch Sr. IT Systems Administrator to support the networking, compute, and application support needs of our launch env

Full-time

USD 95,000.00 - 120,000.00 per year

Sr. IT Systems Administrator, IT Applications

Hawthorne, California

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Today

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. SR. IT SYSTEMS ADMINISTRATOR, IT APPLICATIONS As a Senior IT Systems Administrator, you will serve as a key technical leader and Subject Matter Expert for our collaborative platforms-especially the full Atlassian suite

Full-time

USD 95,000.00 - 120,000.00 per year

Senior Systems Administrator, IT Applications

Remote or Hybrid in Manila, Metro Manila

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Today

Why Ryan? Flexible Work EnvironmentAward-Winning CultureWorld-Class Benefits and CompensationAccelerated Career PathCommunity OutreachMentorship OpportunitiesWellness-Centric Benefits The Senior Systems Analyst, ITSM, works under the direction of the IT Service Management Administrator to analyze business needs and deliver optimal solutions using ITSM best practices and tools, including the Ivanti suite. This role is critical in ensuring ITSM processes are effectively implemented, aligned with

Full-time

Senior Systems Administrator, IT Applications

Remote or Hybrid in Hyderabad, Telangana

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Today

Why Ryan? Global Award-Winning CultureFlexible Work EnvironmentGenerous Paid Time OffWorld-Class Benefits and CompensationRapid Growth OpportunitiesCompany Sponsored Two-Way TransportationExponential Career Growth The Senior Systems Administrator, ITSM, analyzes business requirements and delivers optimal solutions using ITSM best practices and tools, including the Ivanti suite. This role is critical in ensuring ITSM processes are effectively implemented, aligned with business goals, and adhere

Full-time

IT Systems Administrator

San Francisco, California

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Today

About Us At LangChain, our mission is to make intelligent agents ubiquitous. We build the foundation for agent engineering in the real world, helping developers move from prototypes to production-ready AI agents that teams can rely on. We began as widely adopted open-source tools and have grown to also offer a platform for building, evaluating, deploying, and operating agents at scale. With $125M raised at Series B from IVP, Sequoia, Benchmark, CapitalG, and Sapphire Ventures, we're at a stage

Full-time

USD 120,000.00 per year

IT Systems Administrator

Los Angeles, California

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Today

MISO develops technology that elevates human lives in the commercial kitchen. We're engineering production-ready robotic systems that tightly integrate perception, real-time decision making, and electromechanical controls to automate the most dangerous, least desirable tasks in food preparation. That means building software that understands the physical world as it actually behaves, and hardware that can execute precisely in the face of chaos. Success is measured in uptime, throughput, and trus

Full-time

USD 80,000.00 - 105,000.00 per year

IT Systems Administrator

Alameda, California

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Today

Company Overview Kairos Power is a new nuclear energy technology and engineering company whose mission is to enable the world's transition to clean energy, with the ultimate goal to dramatically improve people's quality of life while protecting the environment. This goal will be accomplished through the commercialization of the fluoride-salt-cooled, high-temperature reactor (FHR) that can be deployed with robust safety, affordable costs, and flexible operation to accommodate the expansion of va

Full-time

USD 108,700.00 - 127,900.00 per year

Senior IT Systems Administrator I

Mountain View, California

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Today

Harness is the AI Software Delivery Platform company, led by technologist and entrepreneur Jyoti Bansal (founder of AppDynamics, acquired by Cisco for $3.7B). Harness has raised approximately $570M in funding and is valued at $5.5B, backed by leading investors including Goldman Sachs, Menlo Ventures, IVP, Unusual Ventures, Citi Ventures, and more. As AI accelerates code creation, the real bottleneck has shifted to everything after the code - testing, deployments, application security, reliabilit

Full-time

USD 115,000.00 - 130,000.00 per year

IT Systems Administrator - Millennium Space Systems

El Segundo, California

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Today

IT Systems Administrator - Millennium Space Systems Company: Millennium Space Systems Millennium Space Systems (MSS), a part of Boeing Defense, Space and Security (BDS), is a fast, agile small satellite company focused on national security space. Our missions have direct impact to global security, like missile warning and Earth observation. Our team is curious, bold and innovative. We take risks, innovate and explore new techniques and technologies. We influence change because we challenge th

Full-time

USD 102,850.00 - 151,250.00 per year

Senior Systems Administrator, Classified IT

Costa Mesa, California

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3d ago

Anduril Industries is a defense technology company with a mission to transform U.S. and allied military capabilities with advanced technology. By bringing the expertise, technology, and business model of the 21st century's most innovative companies to the defense industry, Anduril is changing how military systems are designed, built and sold. Anduril's family of systems is powered by Lattice OS, an AI-powered operating system that turns thousands of data streams into a realtime, 3D command and c

Full-time

USD 146,000.00 - 194,000.00 per year

IT Support Administrator

Morgan Hill, California

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Today

MACOM (NASDAQ: MTSI) is a global leader in the design and manufacture of advanced semiconductor products across a diverse range of end markets, including Data Centers, Telecommunications, Industrial and Aerospace and Defense. We develop innovative, cutting-edge technologies and products across the spectrum of radio frequency (RF), microwave, millimeter wave, photonics and high-speed analog technologies. Our solutions support critical network infrastructure applications like artificial intelligen

Full-time

USD 24.00 - 38.00 per hour

IT Administrator II - Secret Clearance

Fort Irwin, California

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Today

Overview Company Overview Statement: Working across the globe, V2X builds smart solutions designed to integrate physical and digital infrastructure from base to battlefield. We bring 120 years of successful mission support to improve security, streamline logistics, and enhance readiness. Aligned around a shared purpose, our $3.9B company and 16,000 people work alongside our clients, here and abroad, to tackle their most complex challenges with integrity, respect, responsibility, and profession

Full-time

USD 95,000.00 - 110,000.00 per year

IT ServiceNow Administrator | Remote, USA

Remote or Overland Park, Kansas

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Today

The IT ServiceNow Administrator is responsible for the day-to-day administration, configuration, maintenance, and support of the ServiceNow platform. This role will help ensure the platform remains stable, secure, and effective while supporting ongoing improvements to IT service management processes. The ideal candidate is a hands-on administrator who can independently manage standard platform needs, troubleshoot issues, and continue developing their ServiceNow knowledge How you'll make an impa

Full-time

Network Administrator (IT Network & Telecoms - Journey)

Remote or Lacey, Washington

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Today

Salary : $85,800.00 - $115,416.00 Annually Location : Thurston County - Lacey, WA Job Type: Full Time - Permanent Remote Employment: Flexible/Hybrid Job Number: 2026-ITSO4597-08334 Department: Dept. of Ecology Division: Information Technology Services Opening Date: 10/12/2026 Closing Date: Continuous Salary Information: The high end of the salary range, Step M is typically a longevity step Description Keeping Washington Clean and Evergreen The Department of Ecology is hiring a Network Administra

Full-time

USD 85,800.00 - 115,416.00 per year

Director of IT Customer Service (Administrator II)

Chico, California

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Today

Our Commitment to Equity, Diversity, and Inclusion: California State University (CSU), Chico is a comprehensive and residential public university, holding Hispanic-Serving Institution (HSI) designation. Chico State operates as part of the 23-campus CSU system, which educates the most ethnically, economically, and academically diverse student body in the nation. The University enrolls over 15,000 students, with over half identifying as first-generation college students. Chico State is committed t

Full-time

USD 150,000.00 per year

IT Operations Support Administrator III (1093) - Department of Technology

San Francisco, California

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Today

Company Description IMPORTANT: Applicants must complete this required Supplemental Questionnaire in addition to submitting an application. The questionnaire must be completed by no later than the application deadline of October 29th, 2026 at 11;59pm. Please note: If you are coming across this announcement outside of the SF Careers website, you must apply directly on the SF Careers site. At this point, you should be able to view the Supplemental Questionnaire link. Specific information regarding

Full-time

USD 109,512.00 - 135,772.00 per year

Senior Director of Cloud Applications (Administrator III, Range 1) - San Francisco Bay Region Network, Information Technology Services

California

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Today

Working Title Senior Director of Cloud Applications Administrator Level This position is an Administrator in the California State University Management Personnel Plan (MPP), reporting to the Network Chief Information Officer. SF State University **The primary work location and designated home-campus for this role is SFSU** San Francisco State is an Equal Opportunity Employer and does not discriminate against persons on the basis of race, religion, color, ancestry, age, disability, genetic info

Full-time

USD 14,727.00 - 16,277.00 per month

IT Administrator

San Francisco, California

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Today

Mapbox is the leading real-time location platform for a new generation of location-aware businesses. Mapbox is the only platform that equips organizations with the full set of tools to power the navigation of people, packages, and vehicles everywhere. More than 4 million registered developers have chosen Mapbox because of the platform's flexibility, security and privacy compliance. Organizations use Mapbox applications, data, SDKs and APIs to create customized and immersive experiences that deli

Full-time

USD 83,300.00 - 112,700.00 per year

Systems Administrator

Martinez, California

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Today

Description Robert Half is looking for a Systems Administrator to support and maintain a complex enterprise technology environment in California. This Systems Administrator opportunity is ideal for a hands-on technical professional with strong experience in Windows Server, VMware, Active Directory, networking, and infrastructure support. The Systems Administrator will be responsible for maintaining critical systems, troubleshooting escalated technical issues, supporting infrastructure projects,

Easy Apply

Full-time

USD 45.00 - 60.00 per hour

IT Network Administrator - Journey

Remote or Olympia, Washington

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Today

Salary: $85,800.00 - $112,572.00 Annually Location : Thurston County - Olympia, WA Job Type: Full Time - Permanent Remote Employment: Flexible/Hybrid Job Number: 2026-08381 Department: Dept. of Licensing Division: Information Services Opening Date: 10/16/2026 Closing Date: 11/1/2026 11:59 PM Pacific Description We are dedicated to growing a culture of belonging through our values: Respect | Trust | Diversity | Inclusion | Equity At the Department of Licensing (DOL),we recognize the importance of

Full-time

USD 85,800.00 - 112,572.00 per year

IT Systems Administrator jobs in California, USA