IT Systems Administrator jobs in California

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

IT Systems Administrator, Sr. (Level 3) / Onsite: Palmdale, CA

Palmdale, California

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Today

Job Description 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 employees work with our partners around the world to bring the latest technology 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. This Enterprise Operations (EO) position supports the Lockheed Martin

Full-time

USD 85,500.00 - 150,765.00 per year

Mid IT Systems Administrator

San Diego, California

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Today

Job Number: R0241905 IT Systems Administrator, Mid The Opportunity: Your combination of people skills and system administrator knowledge makes you the team hero, solving one problem after another. What if you could use those skills to improve the te chn ology supporting the U.S. Navy? We're looking for a system administrator with a background in VMware, Windows Server, Exchange, Active Directory, Network Attached Storage, and Amazon Web Services to help us build next gen sof tware for the U.S.

Full-time

USD 61,900.00 - 141,000.00 per year

IT Systems Administrator

Anaheim, California

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Today

Job ID: 2613359 Location: Anaheim, CA, US Date Posted: 2026-06-04 Category: Engineering and Sciences Subcategory: Systems Engineer Schedule: Full-Time Shift: Day Job Travel: No Minimum Clearance Required: None Clearance Level Must Be Able to Obtain: None Potential for Remote Work: ORA_HYBRID Description SAIC is hiring for a Systems Administrator in Anaheim, CA. This is a hybrid role. Role and responsibilities: The Systems Administrator is responsible for the administration, maintenance

Full-time

USD 80,001.00 - 120,000.00 per year

Systems Administrator - Enterprise IT Operations

San Diego, California

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Today

Description: On-site in San Diego, CA Our client seeks a Systems Administrator to support, secure, and optimize enterprise IT operations. The role includes end-user system support and endpoint deployment for a modern, scalable, and secure environment. The ideal candidate demonstrates technical expertise, organizational discipline, and a collaborative mindset. This is a contract to hire opportunity. Applicants must be willing and able to work on a w2 basis and convert to FTE following contract

Contract

IT Systems Administrator

San Francisco, California

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Today

Substack is building a new economic engine for culture, giving the brightest, most interesting, and most creative people on the internet the power of their own publishing platform. Substack empowers independent writers, artists, videographers, podcasters, and creators of all types to create, share, and make a living off their work through subscriptions, while offering them creative freedom, ownership, and a direct connection to their audiences. About the Role We're looking for an IT Systems Ad

Full-time

USD 120,000.00 - 160,000.00 per year

IT Systems Administrator

Seal Beach, California

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Today

About AstroForge At AstroForge, our mission is to make space resources accessible on Earth. We mine asteroids to extract valuable minerals in space at a lower cost and smaller carbon footprint than current terrestrial mining methods. Along the way, we seek to leverage the technologies we build to provide additional value across other domains. We offer a unique opportunity to join an exciting team looking to expand humanity's capabilities in space. Job Description AstroForge is seeking its fir

Full-time

USD 85,500.00 - 105,250.00 per year

IT Systems Administrator II

Roseville, California

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Today

UBEO Business Services, the premier provider of business technology products and services, is seeking to hire an IT Systems Administrator II to join our team in Roseville, California. UBEO is a distributor/servicer of document equipment and software solutions. Primary products include Canon, Ricoh, Xerox and Konica Minolta multi-functional equipment and Kyocera printers. UBEO specializes in electronic document management software and integrations. Department: Internal IT Reports To: IT Director

Full-time

USD 16.90 per hour

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 IT System Administrator

Long Beach, California

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Today

At Vast, our mission is to contribute to a future where billions of people are living and thriving in space. Vast is developing next-generation space stations to ensure a continuous human presence in space for America and its allies, enabling advanced microgravity research and manufacturing, and unlocking a new space economy for government, corporate, and private customers. Using an incremental, hardware-rich and low-cost approach, Vast is rapidly developing its multi-module Haven Station. Haven

Full-time

USD 107,010.00 - 156,000.00 per year

IT System Administrator

Los Angeles, California

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Today

IT SYSTEM ADMINISTRATOR Freeform builds AI-native manufacturing systems that unify software, hardware, and physics to produce industrial-scale parts at the speed of human ideation. By treating manufacturing as a single integrated system, we unlock a new era of innovation where complex hardware is designed, built, and scaled without limits. We are looking for an early-career IT As a Junior System Administrator at Freeform. In this role, you will keep the systems that power our factory, engineer

Full-time

USD 80,000.00 - 100,000.00 per year

Senior Director of IT Infrastructure, Cloud, & Platform Services (Administrator III)

Chico, California

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Today

Senior Director of IT Infrastructure, Cloud, & Platform Services (Administrator ) Job no: 558029 Work type: Management (MPP) Location: Chico Categories: MPP, Administrative, At-Will, Full Time, Information Systems & Technology 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

Full-time

USD 176,412.00 per year

Systems Administrator II

San Marcos, California

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Today

TrueCare is a trusted healthcare provider serving San Diego and Riverside Counties, offering compassionate and comprehensive care to underserved communities. We are committed to making healthcare accessible to everyone, regardless of income or insurance status. With a focus on culturally sensitive, affordable services, TrueCare aims to improve the health of diverse communities. Our vision is to be the premier healthcare provider in the region, delivering exceptional patient experiences through i

Full-time

USD 43.03 - 64.54 per hour

Senior IT Administrator

El Segundo, California

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Today

At CesiumAstro, we are developers and pioneers of out-of-the-box communication systems for satellites, UAVs, launch vehicles, and other space and airborne platforms. We take pride in our dynamic and cross-functional work environment, which allows us to learn, develop, and engage across our organization. If you are looking for hands-on, interactive, and autonomous work, CesiumAstro is the place for you. We are actively seeking passionate, collaborative, energetic, and forward-thinking individuals

Full-time

USD 99,000.00 - 117,000.00 per year

IT Network Administrator I

Camarillo, California

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Today

Are you a tech-savvy professional with a passion for optimizing network infrastructures? We are seeking a skilled IT Network Administrator I to join our team. As a vital member of our IT department, you will play a pivotal role in ensuring seamless connectivity and robust security across our network ecosystem. If you excel in a dynamic environment and have a knack for network configuration, troubleshooting, and maintenance, we invite you to apply and become a valued member of our forward-thinkin

Full-time

USD 33.33 - 39.54 per hour

IT Site Administrator

Carlsbad, California

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Today

Where Performance Meets Purpose Join a team that values excellence and innovation, at a company known for its iconic golf brands. At Acushnet Company, your background and experience contribute to creating the best products for dedicated golfers worldwide. Here, your performance has purpose. Where Performance Meets Purpose Join a team that values excellence and innovation at a company known for its iconic golf brands. At Acushnet Company, your background and expertise help support the technolog

Full-time

USD 76,180.00 - 99,320.00 per year

Sr. IT Support Administrator

Santa Clara, California

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Today

About SiTime SiTime Corporation is the precision timing company. Our semiconductor MEMS programmable solutions offer a rich feature set that enables customers to differentiate their products with higher performance, smaller size, lower power and better reliability. With more than 3 billion devices shipped, SiTime is changing the timing industry. For more information, visit ;br> Job Summary The Senior IT Support Administrator provides advanced technical support and systems administration for en

Full-time

USD 115,000.00 - 158,000.00 per year

Systems Administrator

Hayward, California

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Today

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: IT Infrastructure and Operations Job Qualifications: Skills: Scripting, VMware Technologies, VMware vCenter Certifications: None Experience: 3 + years of related experience ship Required: Yes Job Description: Check out this great opportunity to join one of GDIT's fastest long-standing growing programs! US

Full-time

USD 70,658.00 - 92,000.00 per year

Systems Administrator

Port Hueneme, California

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Today

Location: Port Hueneme, CA (On-site) Clearance: Active Top Secret (T5/SSBI) Required This position is contingent on contract award Resource Management Concepts, Inc. (RMC) is seeking a Systems Administrator to support our Navy customer in Port Hueneme, CA. This role is responsible for administering, maintaining, and securing enterprise IT systems that support mission-critical Department of Defense (DoD) operations. The ideal candidate brings a proactive approach to system reliability, cyberse

Full-time

USD 108,000.00 - 145,000.00 per year

Systems Administrator

Remote or Tallahassee, Florida

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Today

Job Title: Systems Administrator Location: Tallahassee, FL Duration: Long-Term Contract Looking for W2 candidates. No C2C Job Summary: The Florida Department of Transportation (FDOT), Office of Information Technology, is seeking an experienced Systems Administrator to oversee, manage, troubleshoot, and support enterprise cloud services and infrastructure that power FDOT's applications, data, and critical business operations. The ideal candidate will have strong experience administering AWS,

Contract

$DOE

IT Systems Administrator jobs in California, USA