Top 43 Cybersecurity systems administrator Jobs in California

IT System Administrator / Security Analyst
FM Industries —Fremont, CA
- $125,000 - $150,000 a year
- Full-time
- Azure
- Computer Science
- 5 years
- Health insurance
- Dental insurance
It Specialist (Infosec)
US Deputy Assistant Secretary for Information and Technology —Fresno, CA
- $106,437 - $138,370 a year
- Online Application
- Background check
- Psychiatry
- Pass drug screening
1d
Information System Security Engineer (ISSE)
Govcio LLC —Lompoc, CA
- $120,000 - $140,000 a year
- Full-time
- Customer service
- 5 years
- High school diploma or GED
IT Technician I
CKC Laboratories, Inc. —Mariposa, CA
- $20 - $25 an hour
- Full-time
- Computer science
- Computer Science
- Software troubleshooting
- Health insurance
- Dental insurance
Quick Apply
Information Technology Assurance Specialist
MANTECH —Vandenberg AFB, CA
- Full-time
- Mid-level
- Office
- Windows
Information Technology/Assurance (IT/IA) Specialist III
General Dynamics Information Technology —Fairfield, CA
- $108,630 - $146,970 a year
- Ability to lift 50 pounds
- Experience equivalent to degree accepted
- Senior level
Cyber Systems Engineer
Northrop Grumman —Edwards AFB, CA
- $101,000 - $151,400 a year
- Overtime
- System design
- Research
- Windows
- Paid holidays
- Disability insurance
12d
IT Cyber Security Systems Engineer (Senior Position)
Coast Community College District —California
- $114,683.03 - $154,615.44 a year
- Extended hours
- Background check
- Computer science
- Computer Science
- Paid jury duty
- AD&D insurance
9d
Network Security Administrator
University of California San Francisco —San Francisco, CA
- Full-time
- Azure
- Computer Science
- 3 years
Security and Systems Engineer, Information Technology, Full-Time, Days
MarinHealth Medical Center —San Rafael, CA
- $51.73 - $77.60 an hour
- 8 hour shift
- Computer Science
- Hospital
- Customer service
Quick Apply
10041 - Engineering Systems Administrator - Identity Access Management (IAM)
Hyundai Autoever America —Irvine, CA
- $100,000 - $125,000 a year
- Full-time
- 5 years
- System design
- Analysis skills
Quick Apply
12d
Senior Information Technology Engineer, IT Security (IT/OT Firewall Administration)
East Bay Municipal Utility District (EBMUD) —Oakland, CA
- $13,124 - $191,424 a year
- Overtime
- Hybrid work
- Background check
- Azure
- Research
- Paid holidays
- Disability insurance
IT Cybersecurity and Cloud Specialist
Cohu, Inc. —San Diego, CA
- Full-time
- Azure
- Computer Science
- 5 years
1d
IT Security Administrator
Mutual Trading Company —El Monte, CA
- $71,000 - $81,000 a year
- Full-time
- Computer Science
- English
- Office
- Health insurance
- Dental insurance
Quick Apply
IT SPECIALIST (INFOSEC)
US Naval Facilities Engineering Systems Command —Port Hueneme, CA
- $104,349 - $190,627 a year
- Full-time
- Hybrid work
- Background check
- Pass drug screening
- System design
2d
Information Systems Security Officer (ISSO)
The MITRE Corporation —San Diego, CA
- Full-time
- Computer science
- Computer Science
- 5 years
Information Technology/Assurance (IT/IA) Specialist II
General Dynamics Information Technology —Palmdale, CA
- $107,744 - $140,760 a year
- Windows
- Ability to lift 50 pounds
- Experience equivalent to degree accepted
6d
Journeyman Cybersecurity Systems Administrator
Saalex —Ridgecrest, CA
- $95,000 - $110,000 a year
- Full-time
- Bachelor of Science
- Mid-level
- 3 years
- AD&D insurance
- Disability insurance
Quick Apply
7d
Senior System and Network Administrator
Design West Technologies —Tustin, CA
- $150,000 - $180,000 a year
- Full-time
- Computer science
- Computer Science
- 5 years
- Health insurance
- Dental insurance
Quick Apply
INFORMATION TECHNOLOGY MANAGER I
Department of FISCal —Sacramento County, CA
- $9,387 - $12,579 a month
- Full-time
- Hybrid work
- Office
- Team management
- US work authorization
- Free parking
14d

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IT System Administrator / Security Analyst

FM Industries -
Fremont, CA

Apply Now

Job Details

Full-time
$125,000 - $150,000 a year

Benefits

Health insurance
Dental insurance
401(k)
Paid time off
Vision insurance

Qualifications

Regulatory Frameworks (Architecture security)
Incident response implementation

Full Job Description

GET TO KNOW US:

FM Industries can promise you an environment that not only encourages your best, but also rewards it with plenty of room to grow. FM industries is a premier manufacturing solutions provider. We specialize in build to print, precision machined components, anodizing and engineered thermal spray coatings. We provide customers leading edge support from protype to production.

This is a full-time, onsite position based in Fremont, CA. Candidates must be located in the San Francisco Bay Area and available to work onsite five days per week.

SUMMARY OF POSITION:

Responsible for the design, implementation, and maintenance of enterprise IT infrastructure alongside proactive management of the organization's information security posture. This position combines hands-on systems administration — servers, networks, storage, and virtualization — with security analysis duties including vulnerability management, threat monitoring, incident response, and compliance support. The ideal candidate is a seasoned IT professional who can operate independently, mentor junior staff, and serve as a technical escalation point for both infrastructure and security matters.

Administer, configure, and maintain Windows and/or Linux server environments, including Active Directory, DNS, DHCP, and Group Policy.
Manage virtualization platforms (e.g., VMware, Hyper-V) and associated storage and backup infrastructure.
Oversee patch management, system upgrades, and lifecycle replacement of servers, workstations, and network hardware.
Monitor system performance and capacity, proactively identifying and resolving bottlenecks or failures.
Administer core enterprise applications, directory services, and cloud infrastructure (e.g., Microsoft 365, Azure, AWS).
Provide Tier 3 technical support and serve as an escalation point for complex infrastructure issues.
Monitor security information and event management (SIEM) tools, firewalls, and intrusion detection/prevention systems for anomalous activity.
Conduct regular vulnerability assessments and coordinate remediation with system owners and administrators.
Support incident response activities, including detection, containment, eradication, and post-incident review.
Develop, review, and enforce security policies, standards, and procedures in alignment with industry frameworks (e.g., NIST, CIS, ISO 27001).
Support internal and external security audits, risk assessments, and regulatory compliance efforts (e.g., HIPAA, PCI-DSS, SOC 2, as applicable).
Perform security awareness training and phishing simulation programs for staff.
Evaluate and recommend new security tools, technologies, and best practices to strengthen the organization's security posture.
Maintain accurate documentation of systems, configurations, security controls, and standard operating procedures.
Mentor and provide technical guidance to junior systems administrators and IT support staff.
Participate in an on-call rotation for after-hours system and security incidents.
Collaborate with cross-functional teams on IT projects, infrastructure upgrades, and security initiatives.

Qualifications:

Bachelor's degree in Computer Science, Information Technology, Cybersecurity, or a related field, or equivalent combination of education and experience.
Minimum of 5 years of progressive experience in systems administration, with at least 2 years in a security-focused role.
Strong knowledge of Windows Server and/or Linux administration, Active Directory, and enterprise networking (TCP/IP, VLANs, VPNs, firewalls).
Demonstrated experience with security tools such as SIEM platforms, vulnerability scanners, endpoint detection and response (EDR), and firewall management consoles.
Solid understanding of security frameworks and regulatory requirements relevant to the organization's industry.
Strong analytical, troubleshooting, and incident response skills.
Excellent written and verbal communication skills, with the ability to explain technical concepts to non-technical stakeholders.

CULTURE:

At FM Industries our success is powered by people and technology. Our culture is what makes FM a fun and rewarding place to work. We champion diversity and we are always seeking new ways to amaze our customers. Success is celebrated and integrity is the core of who we are at FM Industries.

WHAT CAN WE OFFER YOU FOR ALL YOUR HARD WORK?

Competitive salaries

Paid time off program

Medical, dental, vision coverage

401(k) Retirement Savings – with a generous company match

Give us your best and we’ll give you ours!

Apply Now

Refine Your Search

cybersecurity systems administrator jobs in california

IT System Administrator / Security Analyst

It Specialist (Infosec)

Information System Security Engineer (ISSE)

IT Technician I

Information Technology Assurance Specialist

Information Technology/Assurance (IT/IA) Specialist III

Cyber Systems Engineer

IT Cyber Security Systems Engineer (Senior Position)

Network Security Administrator

Security and Systems Engineer, Information Technology, Full-Time, Days

10041 - Engineering Systems Administrator - Identity Access Management (IAM)

Senior Information Technology Engineer, IT Security (IT/OT Firewall Administration)

IT Cybersecurity and Cloud Specialist

IT Security Administrator

IT SPECIALIST (INFOSEC)

Information Systems Security Officer (ISSO)

Information Technology/Assurance (IT/IA) Specialist II

Journeyman Cybersecurity Systems Administrator

Senior System and Network Administrator

INFORMATION TECHNOLOGY MANAGER I

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