Senior Systems Administrator Jobs in California

Senior Systems Administrator jobs in California are among the most active in the country, with strong demand concentrated in enterprise technology, defense contracting, cloud infrastructure, and higher education. The largest hiring centers are the San Francisco Bay Area, Los Angeles, and San Diego, where employers like Northrop Grumman, Kaiser Permanente, and the University of California system maintain large IT operations. The most in-demand specialties are cloud platform administration, identity and access management, and enterprise network systems. Find a role that fits below and apply directly.

Find Jobs

Overview

Open roles197+
Top employerNVIDIA
Top citySan Francisco, CA
Cities hiring54
Work type76% On-site
Top industryTechnology

Showing 5 of 197+ Senior Systems Administrator jobs

Intuitive (Intuitive Surgical)
Senior System Administrator
We won't show you this job again
Intuitive (Intuitive Surgical)
Added 5d ago
Senior System Administrator
Intuitive (Intuitive Surgical)
Sunnyvale, California
IT Support & Systems Administration
Technical Product & Program Management
Project & Program Management
IT Support
Technical Program Management
Project Management
$134k - $227k/yr
On-Site
Bachelor's

Have you applied for this role?

Headway Technologies
Senior Systems Administrator
We won't show you this job again
Headway Technologies
Added 1w ago
Senior Systems Administrator
Headway Technologies
Milpitas, California
IT Support & Systems Administration
Data Engineering
IT Support
Systems Administration
Database Administration (DBA)
$35.00 - $45.00/hr
On-Site
Bachelor's

Have you applied for this role?

Joseph J. Albanese, Inc.
Senior Systems Administrator
We won't show you this job again
Joseph J. Albanese, Inc.
Added 2w ago
Senior Systems Administrator
Joseph J. Albanese, Inc.
Santa Clara, California
IT Support & Systems Administration
Cybersecurity
Cloud & DevOps
Technical Product & Program Management
IT Support
Systems Administration
$110k - $140k/yr
On-Site
None
501-1,000

Have you applied for this role?

AltaMed Health Services
Senior Systems Administrator
We won't show you this job again
AltaMed Health Services
Added 3w ago
Senior Systems Administrator
AltaMed Health Services
Commerce, California
IT Support & Systems Administration
Cloud & DevOps
IT Support
Systems Administration
$103k - $129k/yr
On-Site
Bachelor's
1,001-5,000

Have you applied for this role?

California State University, Los Angeles
Senior Systems Administrator
We won't show you this job again
California State University, Los Angeles
Added 6mo ago
Senior Systems Administrator
California State University, Los Angeles
Los Angeles, California
IT Support
Systems Administration
Security Engineering
On-Site
Bachelor's

Have you applied for this role?

See All 197+ Senior Systems Administrator Jobs in California

Find roles in California that match your experience and apply in just a few clicks.

Find Jobs

Senior Systems Administrator Jobs by City in California

Where California roles are concentrated, by current openings.

San Francisco
28 jobs
Santa Clara
21 jobs
San Jose
19 jobs
Sunnyvale
19 jobs
Los Angeles
9 jobs
Mountain View
7 jobs
Palo Alto
7 jobs
Redwood City
6 jobs
Fremont
5 jobs

Senior Systems Administrator Job Market in California

A snapshot from current California openings, updated as new roles post.

Who's Hiring

  • NVIDIA
    NVIDIA12
  • Hewlett Packard Enterprise | HPE
    Hewlett Packard Enterprise | HPE4
  • Zoox
    Zoox4
  • Alameda Health System
    Alameda Health System3
  • CRUSOE
    CRUSOE3

Top Industries Hiring

  • Technology & Software64
  • Electronics & Hardware20
  • Healthcare & Medical Services14
  • Biotechnology & Pharmaceuticals13
  • Consulting & Professional Services9

What California Employers Look For

The qualifications that appear most often in senior systems administrator jobs across California.

  • Bachelor's degree in computer science, information technology, or a related technical field
  • Five or more years of hands-on systems administration experience in enterprise environments
  • Active certifications such as RHCSA, Microsoft Certified: Azure Administrator, or CompTIA Linux+
  • Proficiency with virtualization platforms including VMware vSphere or Microsoft Hyper-V
  • Experience managing Active Directory, group policy, and identity and access management systems
  • Familiarity with cloud environments such as AWS, Azure, or Google Cloud Platform

Senior Systems Administrator Jobs in California: Frequently Asked Questions

How do you become a senior systems administrator in California?

Most senior systems administrators in California reach the role through a combination of a bachelor's degree in computer science or information technology and several years of progressively responsible IT experience. California does not require a state-issued license for this role, but employers consistently expect vendor-backed credentials such as RHCSA, CompTIA Linux+, or Microsoft Certified: Azure Administrator. Large California employers in defense, healthcare, and higher education also look for experience with security frameworks and enterprise infrastructure at scale.

How much do senior systems administrators make in California?

Senior systems administrators in California earn a median of about $106,440 a year, based on May 2025 Bureau of Labor Statistics wage data, ranging from around $72,400 for the lowest 10% to over $166,730 for the top 10%. Pay rises with experience, specialty, and employer.

Which companies hire senior systems administrators in California?

Employers hiring senior systems administrators in California right now include NVIDIA, Hewlett Packard Enterprise | HPE, and Zoox, based on current listings on Migrate Mate as of June 2026. California's concentration of defense contractors, major health systems, and large public universities means demand is consistent across both the private and public sectors.

Which California cities have the most senior systems administrator jobs?

San Francisco, Santa Clara, and San Jose have the most senior systems administrator openings in California. The Bay Area leads because of its dense concentration of enterprise technology companies and cloud infrastructure operations, while Los Angeles draws volume from entertainment, aerospace, and healthcare employers, and San Diego's openings are heavily shaped by defense contractors and biotech firms that maintain large on-premises and hybrid IT environments.

Are there remote senior systems administrator jobs in California?

Yes, but they're less common than in purely desk-based roles because senior systems administrators are often needed on-site to manage physical hardware, data centers, and network infrastructure. About 24% of senior systems administrator openings tied to California are remote or hybrid as of June 2026, and those positions tend to focus on cloud platform management, monitoring, and configuration work that does not require physical access.

How can I get hired as a senior systems administrator in California with little or no experience?

The most realistic entry path is starting as a systems administrator I or IT support specialist and building toward the senior level over time. California's large public university system, county government IT departments, and health systems like Dignity Health and Kaiser Permanente regularly hire entry-level administrators and offer internal advancement paths. Earning a foundational credential such as CompTIA A+ or Google IT Support Certificate, then progressing to a Linux or cloud certification, signals readiness to California hiring managers even without years of enterprise experience.

Where can I find and apply to senior systems administrator jobs in California?

You can find and apply to senior systems administrator jobs in California on Migrate Mate, which lists current California openings across industries and metro areas. Search for roles that match your experience level and specialization, then apply directly to the ones that fit.

See All 197+ Senior Systems Administrator Jobs in California

Find roles in California that match your experience and apply in just a few clicks.

Find Jobs