IT Systems Administrator jobs in California

Anaheim, California

•

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 remote role. Role and responsibilities: The Systems Administrator is responsible for the administration, maintenance

Full-time

USD 80,001.00 - 120,000.00 per year

Mid IT Systems Administrator

San Diego, California

•

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, Mission Systems

California

•

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

Full-time

USD 95,000.00 - 115,000.00 per year

IT Field Systems Administrator

Irwindale, California

•

4d ago

IT Field Systems Administrator IT Field Systems Administrator Location: California HQ with regular travel to California branch locations and occasional travel to Las Vegas. Some hybrid/remote work available. Status: Full-Time Join a Team Where Technology Supports People Rize Credit Union is looking for a hands-on IT Field Systems Administrator who thrives on solving problems, supporting teams in person, and keeping technology running smoothly in a fast-paced, service-focused environment. This

Full-time

$33 - $42

IT - Systems Administrator (Service Support Analyst)

Remote or Austin, Texas

•

Today

job summary: Your Opportunity The Distributed/Server Service Support Analyst is the primary point of contact for technology teams and vendors. The position works in the Information Technology Operations Command Center and participates in the technical administration of server systems, monitoring, acknowledging of enterprise-wide alerts and performing Incident & Change management. This role provides Incident triages, troubleshooting server issues with the use of available knowledge resources an

Contract

USD38 - USD43

IT Systems Administrator

Seal Beach, California

•

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 III

San Diego, California

•

Today

GROW WITH US AND STAY EXTRAORDINARY: Launch your career to new heights with Innoflight-one of San Diego's fastest-growing Aerospace and Defense innovators. Here, visionary minds engineer the future of space technology through pioneering, compact, and cyber-secure solutions. From software-defined radios to cutting-edge cryptographic systems and avionics, everything we build powers the next era of New Space. Join our small, agile, and mission-driven team where your work has real impact and your gr

Full-time

USD 98,105.00 - 147,157.00 per year

Senior IT Systems Administrator

San Francisco, California

•

Today

At Perplexity, we're changing how the world finds answers. In 2026, we launched Computer, the defining product for the new era of agentic AI. Millions of people now use Perplexity to transform knowledge into action, and behind all of that sits the technology infrastructure that keeps a fast-moving company running. We're looking for an IT Systems Administrator who wants to do more than keep the lights on. This is an early, high-impact role where you'll build the systems and automations that let

Full-time

USD 150,000.00 - 180,000.00 per year

Systems Administrator (IT and Network Support)

Dana Point, California

•

Today

TITLE: Systems Administrator (IT & Network Support) LOCATION: Point Mugu AFB, CA, US CLEARANCE REQUIRED: Active DoD Secret Clearance EMPLOYMENT TYPE: Full-time TRAVEL: Up to 20% POSITION SUMMARY Modern Government Solutions LLC (MGS) is seeking a Systems Administrator (IT & Network Support) to provide onsite IT operations support for Blue Water Instrumentation (BWI) at Naval Base Ventura County (Point Mugu Sea Range). This role is responsible for maintaining and securing operational IT infra

Full-time

USD 185,000.00 - 205,000.00 per year

Senior Windows Systems Administrator (Enterprise IT)

Norco, California

•

Today

Job#: 3035320 Job Description: Senior Windows Systems Administrator (Enterprise IT) Location: Norco, California (Onsite) Employment Type: Contract to Perm Role Overview A Windows-focused Systems Administrator is sought to support and manage enterprise IT infrastructure across multiple environments. This individual will have a critical role in systems administration, endpoint management, security compliance, operational maturity, and mentorship of junior staff. The ideal candidate has deep ex

Easy Apply

Full-time

IT Administrator

Santa Clarita, California

•

Today

IT Support Specialist Position Summary Responsible for maintaining and supporting information technology networks and infrastructure. This role ensures the smooth operation of systems, provides technical support to end users, and assists with onboarding/offboarding processes. Key Responsibilities Serve as an internal point of contact for network-related issues, including support for remote locations Provide helpdesk support, troubleshooting hardware and software issues in a timely manner Config

Easy Apply

Full-time

$75000.00 - $80000.00 per annum

IT/OT System Administrator

Remote or Hybrid in Des Plaines, Illinois

•

15d ago

Hello,Please check the requirement below and let me know your interest applying for this roleCandidates need to have experience with Operational Technology (OT) technologies such as SCADA (Supervisory Control and Data Acquisition) and ICS (Industrial Control System).Job Description:Role: Senior IT/OT System Administrator Location: Hybrid 2x per week in Rosemont ILDuration: 6+ monthsAuthorization: Must be eligible to convert without sponsorship (USC)Interview: 1 round Teams panelManager Reference

Easy Apply

Contract

60 - 65

Senior IT Support Administrator

Santa Clara, California

•

11d ago

Santa Clara, CA (onsite) Full-time regular position with excellent salary, benefits and bonus Job Summary Our client, a reputed Semiconductor company, is looking for a Senior IT Support Administrator to provide advanced technical support and systems administration for enduser computing environments. This role serves as an escalation point for complex IT issues and is responsible for endpoint management, identity and access administration, security controls, SaaS platform support, and IT operati

Easy Apply

Full-time

130000 - 180,000

Lead Applications Administrator - IT Research

Remote or Wisconsin

•

Today

Sanford Health, the largest rural health system in the United States, is dedicated to transforming the health care experience and providing access to world-class health care in America's heartland. Work Shift: 8 Hours - Day Shifts (United States of America) Scheduled Weekly Hours: 40 Compensation: Salary Range: $37.50 - $62.00Pay starts at $37.50 and increases according to years of applicable experience. Union Position: No Department Details REDCap experience highly preferred. REDCap Responsi

Full-time

USD 37.50 per hour

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

Chico, California

•

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

IT Support Administrator, Projects

Hawthorne, California

•

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. IT SUPPORT ADMINISTRATOR, PROJECTS The IT Support Administrator - Projects is responsible for the planning, administration, and successful execution of key annual IT operations, with primary ownership of the hardware

Full-time

USD 95,000.00 - 115,000.00 per year

Senior IT System Administrator

Long Beach, California

•

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 - 151,900.00 per year

Linux Administrator (IT Senior Engineer)

San Diego, California

•

Today

Company: Qualcomm Incorporated Job Area: Information Technology Group, Information Technology Group > IT Engineering General Summary: Knowledge in UNIX Operating systems like Red Hat Enterprise Linux / Ubuntu/SUSE and Solaris should be flexible and have cross platform working knowledge. Hands on experience in configuring and deploying Hardware devices like HP DL/BL Series Servers, Sun Hardware, Super Micro and Dell - Enclosures/Blade hardware platform. This role requires full-time onsite wo

Full-time

USD 45.77 - 68.65 per hour

Sr. IT ERP System Administrator

San Jose, California

•

Today

Monolithic Power Systems, Inc. (MPS) is one of the fastest growing companies in the Semiconductor industry. We are worldwide technical leaders in Integrated Power Semiconductors and Systems Power delivery architectures. At MPS, we cultivate creativity, are passionate about sustainability, and are committed to providing leading-edge products and innovation to our customers. Our portfolio of technology helps power our world come join our team and see how YOU can make a difference. Job Description

Full-time

USD 120,000.00 - 150,000.00 per year

IT Administrator IV/Patch Management Specialist, Senior

Remote

•

Today

The Patch Management Specialist, Senior oversees enterprise patch management strategy and execution for desktops, laptops, and remote endpoints in a highly regulated, defense-focused environment. This role defines patch governance, schedules, and standards, aligning remediation activities with security policies, regulatory requirements, and mission needs while minimizing impact to critical services. The specialist leads coordination with security, infrastructure, and end-user support teams, driv

Full-time

Filter Results

Job post features

Posted date

Work settings

Employment type

Employer type

Work authorization

IT Systems Administrator jobs in California, USA