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

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

IT & PLM Systems Administrator

Santa Monica, California

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Today

Description: Who We Are John Paul Mitchell Systems ("JPMS") is recognized worldwide for developing and marketing innovative hair and skin care products since 1980. We've been serving the professional beauty industry with salon-quality hair care products, styling tools and professional hair color through our family of brands including Paul Mitchell, MITCH, Awapuhi Wild Ginger, Tea Tree, Paul Mitchell Tools, Neuro, The Demi, Paul Mitchell the Color, Blonde, and Color XG. We were the first profes

Full-time

USD 100,000.00 - 110,000.00 per year

Systems Administrator - Enterprise IT Operations

San Mateo, California

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4d ago

Description: On-site in San Mateo, 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 across Mac, Windows, and Linux. The successful candidate will bring technical expertise, organized execution, and a collaborative approach to maintain a modern and secure IT environment. Due to client requirements, applicants must be willing and able to work on a w2 basis. For our w2 consulta

Contract

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

IT Systems Administrator & Operations Specialist, Work From Home, 6 Month Contract - G

Remote

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Today

IT Systems Administrator & Operations Specialist, Work From Home, 6 Month Contract We are seeking a hands-on IT Systems Administrator & Operations Specialist to independently operate and maintain the internal IT environment for a globally distributed workforce. This is an individual contributor role focused on reliable systems administration, endpoint management, identity and access, SaaS administration, and responsive employee support. The role emphasizes practical technical execution over tea

Easy Apply

Contract

30 - 35

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

Senior IT Systems Administrator

Remote or New York, New York

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Today

Circle (NYSE: CRCL) is one of the world's leading internet financial platform companies, building the foundation of a more open, global economy through digital assets, payment applications, and programmable blockchain infrastructure. Circle's platform includes the world's largest regulated stablecoin network anchored by USDC, Circle Payments Network for global money movement, and Arc, an enterprise-grade blockchain designed to become the Economic OS for the internet. Enterprises, financial insti

Full-time

USD 112,500.00 - 134,167.00 per year

IT Systems Administrator

Remote or Michigan

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Today

ABOUT SLATE At Slate, we're building safe, reliable vehicles that people can afford, personalize and love-and doing it here in the USA as part of our commitment to reindustrialization. The spirit of DIY and customization runs throughout every element of a Slate, because people should have control over how their trucks look, feel, and represent them. WHO WE ARE LOOKING FOR The IT Systems Administrator is responsible for administering and improving enterprise identity, endpoint management, and

Full-time

IT Systems Administrator

San Diego, California

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Today

Taxable Entity ALUTIIQ INFORMATION MANAGEMENT LLC Job Title IT Systems Administrator Location CA San Diego NIWC Pacific - San Diego, CA 92106 US (Primary) Category IT and Computer Related Job Type Full-time Typical Pay/Range $38.46 to $45.67 Hourly Education Associate Degree Travel None Security Clearance Required Secret POSITION OVERVIEW AND PRIMARY DUTIES AND RESPONSIBILITIES (ESSENTIAL FUNCTIONS): Alutiiq Information Management, LLC a subsidiary of Alutiiq, LLC is seeking a

Full-time

USD 38.46 - 45.67 per hour

IT Systems Administrator

Victorville, California

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Today

About Mach Industries Founded in 2023, Mach Industries is a rapidly growing defense technology company focused on developing next-generation autonomous defense platforms. At the core of our mission is the commitment to delivering scalable, decentralized defense systems that enhance the strategic capabilities of the United States and its allies. With a workforce of approximately 350 employees, we operate with startup agility and ambition. Our vision is to redefine the future of warfare through

Full-time

USD 80,000.00 - 120,000.00 per year

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

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

Senior IT Systems Administrator (Azure Windows Admin)

El Segundo, California

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Today

CHAOS Industries is redefining modern defense with a multi-product portfolio that gives the ultimate advantage-domain dominance. The company's products are powered by Coherent Distributed Networks (CDN ), empowering warfighters, commercial air operators, and border protection teams to act faster, adapt rapidly, and stay ahead of evolving threats. CHAOS Industries was founded in 2022 and has raised a total of $1 billion in funding from leading investors, including 8VC, Accel, and Valor Equity Par

Full-time

USD 140,000.00 - 200,000.00 per year

IT Systems Administrator

San Luis Obispo, California

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Today

IT Systems Administrator Job Summary: The IT Systems Administrator is responsible for managing, optimizing, and securing the company's IT infrastructure, including networks, servers, and software systems. This role requires exercising discretion and independent judgment regarding IT solutions that directly impact business operations, cybersecurity, compliance, and system efficiency. The IT Systems Administrator collaborates across departments to develop strategies, maintain regulatory complian

Full-time

USD 90,000.00 - 120,000.00 per year

IT Security Administrator

San Diego, California

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Today

At PMAT, we work on mission-critical systems that directly support the warfighter, designing, building, and securing modern digital capabilities across cloud, data, and software environments. Our teams tackle complex, real-world challenges where delivery matters more than theory, and innovation is driven by curiosity, collaboration, and purpose. In this role, you'll support PMAT's internal cybersecurity and IT operations, working alongside IT leadership to strengthen endpoint security, remediat

Full-time

Systems Administrator

Hayward, California

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Today

Type of Requisition: Regular Clearance Level Must Currently Possess: Secret Clearance Level Must Be Able to Obtain: Secret Public Trust/Other Required: None Job Family: IT Infrastructure and Operations Job Qualifications: Skills: ACAS, Information Technology (IT) Systems, Systems Administrator, Wireless Local Area Network (WLAN) Certifications: CompTIA Security+ CE | CompTIA - CompTIA Experience: 3 + years of related experience ship Required: Yes Job Description: Serve as a Systems Admin

Full-time

USD 70,658.00 - 82,800.00 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 Systems Administrator jobs in California, USA