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Windows System Admin Jobs in California (NOW HIRING)

Foxconn Assembly LLC

System Administrator

San Jose, CA · On-site

Configure and maintain essential Windows server applications, including Domain Controllers (Active ... System Administrator in a professional IT environment, preferably within the manufacturing ...

ASUS Computer International

Senior IT System Admin

Fremont, CA · On-site

$101K - $138K/yr

Proficient in Windows and Linux operating systems. * Extensive experience with Active Directory ... Azure Administrator Associate or similar. • CompTIA Security+ or equivalent. • VMware Certified ...

ASUS Computer International

Senior IT System Admin

Fremont, CA · On-site

$94K - $127K/yr

Proficient in Windows and Linux operating systems. * Extensive experience with Active Directory ... Azure Administrator Associate or similar. • CompTIA Security+ or equivalent. • VMware Certified ...

ASUS

Senior IT System Admin

Fremont, CA · On-site

$94K - $127K/yr

Proficient in Windows and Linux operating systems. * Extensive experience with Active Directory ... Azure Administrator Associate or similar. CompTIA Security+ or equivalent. VMware Certified ...

Business Integra

System Administrator

Redwood City, CA · On-site

Company Description System Administrator Location: Redwood City, CA Duration: Long-Term Desired ... Windows systems administration • Experience working with Windows 2003 - 2012. • Knowledge of ...

L3HHCM20

$110K - $205K/yr

Administer and maintain Microsoft Windows systems, ensuring optimal performance and reliability. * Utilize security tools such as Tenable and Splunk to monitor, detect, and respond to security ...

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All JobsWindows System Admin JobsWindows System Admin Jobs in California

Windows System Admin information

See California salary details

$53.3K

$94.7K

$128.8K

How much do windows system admin jobs pay per year?

As of Aug 20, 2026, the average yearly pay for windows system admin in California is $94,700.00, according to ZipRecruiter salary data. Most workers in this role earn between $78,000.00 and $109,100.00 per year, depending on experience, location, and employer.

What is a Windows system admin?

Windows System Admins, or Windows System Administrators, are IT professionals responsible for managing, configuring, and maintaining Microsoft Windows-based servers and systems within an organization. Their duties include installing software, managing user accounts, ensuring system security, troubleshooting issues, and performing regular backups. They play a critical role in ensuring the smooth operation, reliability, and security of an organization’s IT infrastructure.

What are the key skills and qualifications needed to thrive as a Windows system admin?

To thrive as a Windows System Admin, you need a solid understanding of Windows server environments, Active Directory, networking concepts, and typically a relevant degree or certifications such as Microsoft Certified: Windows Server Fundamentals. Familiarity with tools like PowerShell, Hyper-V, System Center, and backup/restore systems is commonly required. Strong problem-solving abilities, attention to detail, and effective communication skills help in managing incidents, collaborating with teams, and supporting end users. These competencies are crucial for ensuring system reliability, security, and efficient IT operations in business environments.

What are some common challenges Windows system admins face when managing large enterprise environments?

Windows System Administrators in large enterprise settings often encounter challenges such as maintaining consistent configurations across multiple servers, ensuring security compliance, and managing software updates without disrupting business operations. They also need to troubleshoot complex issues that may arise due to the interaction of various applications and network components. Effective communication and collaboration with other IT teams, such as network and security specialists, are essential to address these challenges efficiently and maintain a stable IT infrastructure.

What is the difference between Windows System Admin vs Network Administrator?

AspectWindows System AdminNetwork Administrator
CertificationsCompTIA Server+, Microsoft Certified: Windows Server FundamentalsCompTIA Network+, Cisco CCNA
Work EnvironmentManaging Windows servers, Active Directory, and system securityConfiguring and maintaining network infrastructure, routers, switches
Primary FocusServer and OS managementNetwork connectivity and infrastructure

While both roles involve IT infrastructure, Windows System Admins focus on managing Windows servers and related systems, whereas Network Administrators handle network hardware and connectivity. Both roles often collaborate but have distinct responsibilities within an organization's IT environment.

What are popular job titles related to Windows System Admin jobs in California?

For Windows System Admin jobs in California, the most frequently searched job titles are:

What job categories do people searching Windows System Admin jobs in California look for?

The top searched job categories for Windows System Admin jobs in California are:

What cities in California are hiring for Windows System Admin jobs?

Cities in California with the most Windows System Admin job openings:

Windows System Admin jobs near you
Infographic showing various Windows System Admin job openings in California as of August 2026, with employment types broken down into 100% Full Time. Highlights an 100% In-person job distribution, with an average salary of $94,700 per year, or $45.5 per hour.

System and Application Technical Lead / System Administrator

Collabera

San Diego, CA • On-site

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 6 days ago

Job description

Company Description

Established in 1991, Collabera has been a leader in IT staffing for over 22 years and is one of the largest diversity IT staffing firms in the industry. As a half a billion dollar IT company, with more than 9,000 professionals across 30+ offices, Collabera offers comprehensive, cost-effective IT staffing & IT Services. We provide services to Fortune 500 and mid-size companies to meet their talent needs with high quality IT resources through Staff Augmentation, Global Talent Management, Value Added Services through CLASS (Competency Leveraged Advanced Staffing & Solutions) Permanent Placement Services and Vendor Management Programs. 

Collabera recognizes true potential of human capital and provides people the right opportunities for growth and professional excellence. Collabera offers a full range of benefits to its employees including paid vacations, holidays, personal days, Medical, Dental and Vision insurance, 401K retirement savings plan, Life Insurance, Disability Insurance.

Job Description

Job Title: System and Application Technical Lead

Duration: 6 + Months (High possibility of extension)

Job Description:

Candidate will provide leadership, systems engineering support, and system administrations and for performance monitoring systems and a complex distributed data repository. Candidate will be technical lead of a team of system administrators and web/database developers delivering custom web based and COTS performance measurement solutions for our customer.

Required Skills:

Over 10 years of experience in the integration and systems administration of Windows Servers, Microsoft SQL servers and IIS based web servers 

Experience with server virtualization using VMware.  

Ability to review security policies and to then lead direct implementation of associated system configuration.  

Ability to design, plan, direct, execute system upgrades; prepare cost estimates and bill of materials for system upgrades.  

Ability to operate independently in a fast paced environment and provide a direct interface with customers. 

Prior experience directing daily activates of system administrators and developers.  

Applicant must be highly organized and enthusiastic individual

Advanced Windows System Administration in a DoD environment

Advanced Active Directory Group Policy Management 

Experience with AD Sites and Services - Manage objectives in AD Domain Services that implement the inter-site replication topology

Experience with AD Users and Computers - administer and publish user and computer objectives in the directory in a DoD environment

Strong MS-SQL development and administration skills

Strong understanding of TCP/IP networking 

Strong experience maintaining system readiness through the implementation, administration, and management via DISA STIG's and other related DoD policies.

Develop and implement documentation including policies, procedures, checklists, and guidance specific to Windows related systems and associated infrastructure.

Strong RMF and/or DIACAP system accreditation processes experience

Desired Skills:

Experience with System Performance Measurement and/or Capacity Planning

Proficiency with SAN design and administration

Understanding of software development life cycle

Previous work experience with Defense Health Agency or Military Health System 

Education/Certifications:

Bachelor's Degree in Engineering, Computer Science, Information Systems or related field. Applicable experience will be considered in lieu of degree

Valid Security+ or CISSP certification

Possess or able to obtain Position of Public Trust (ADP/IT-1)


Qualifications

Only USC and GCH

Additional Information

To know more about this position, please contact:

Ujjwal Mane

973-805-7557

ujjwal.mane(at)collabera.com

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About Collabera

Sourced by ZipRecruiter

Collabera is a Global Digital Solutions Company providing Software Engineering Solutions for the world's most tech-forward organizations in the areas of Engineering, Cloud and Data/AI. With its roots serving the engineering needs of the world's most recognized businesses in Technology, Financial Services, Telecom and Healthcare, Collabera today operates across 60 locations in 11 countries, serves 30% of the Fortune 500, and has exceeded the industry growth rate by 3-4x for several years.

Industry

It services

Company size

5,001 - 10,000 Employees

Headquarters location

Morristown, NJ, US

Social media

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