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Senior System Administrator Jobs in Riverside, CA

Provident Logo

Network Administrator Sr.

Riverside, CA · On-site

$95 - $125/hr

The Network Administrator Senior is responsible for ensuring the stable operation of the Bank ... Plan, deploy, and monitor system hardware and software including servers, operating systems, and ...

New

MetroSys

IT Systems Administrator

Irvine, CA · On-site

$30 - $40/hr

Review system alerts, event logs, and identified failures. * Administer Windows Server patching and ... Escalate complex server, hardware, or application issues to vendors or senior engineering resources ...

MetroSys, Inc.

IT Systems Administrator

Irvine, CA · On-site

$75 - $110/hr

Review system alerts, event logs, and identified failures. * Administer Windows Server patching and ... Escalate complex server, hardware, or application issues to vendors or senior engineering resources ...

MetroSys

IT Systems Administrator

Irvine, CA · On-site

$30 - $40/hr

Review system alerts, event logs, and identified failures. * Administer Windows Server patching and ... Escalate complex server, hardware, or application issues to vendors or senior engineering resources ...

Sonsoft Inc

Senior Oracle DBA

Irvine, CA · On-site

Senior Oracle DBA 10+Exp Location : Irvine, CA Interview : WebEx/Skype Interview Duration ... system configurations Assist in the logical and physical database design and providing general ...

Prescient Edge

Senior Systems Engineer

Riverside, CA · On-site

$109K - $149K/yr

... Administrator III opportunity to support a Federal Government client. Please note that the ... Evaluate and analyze C4I communications capabilities, including system performance ...

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Showing results 21-40

All JobsSystem Administrator JobsSenior System Administrator JobsSenior System Administrator Jobs in Riverside, CA

Senior System Administrator information

See Riverside, CA salary details

$51.1K

$106.7K

$149.7K

How much do senior system administrator jobs pay per year?

As of Sep 4, 2026, the average yearly pay for senior system administrator in Riverside, CA is $106,653.00, according to ZipRecruiter salary data. Most workers in this role earn between $89,700.00 and $121,500.00 per year, depending on experience, location, and employer.

What does a senior system administrator do?

A Senior System Administrator is responsible for managing, maintaining, and securing an organization's IT infrastructure, including servers, networks, and related systems. They oversee the installation and configuration of hardware and software, troubleshoot complex technical issues, and ensure the reliability and performance of IT services. Senior System Administrators also implement security policies, perform regular system updates, and may supervise junior IT staff. Their expertise is essential for minimizing system downtime and protecting data integrity.

What are the key skills and qualifications needed to thrive as a senior system administrator, and why are they important?

To thrive as a Senior System Administrator, you need in-depth knowledge of operating systems, networking, security protocols, and significant experience managing IT infrastructure, usually backed by a degree in computer science or related certifications (such as CompTIA, Microsoft, or Cisco). Expertise with tools like VMware, Active Directory, PowerShell, and cloud platforms (AWS, Azure) is typically required. Strong problem-solving skills, attention to detail, and effective communication are crucial soft skills for this role. These abilities ensure reliable system performance, minimize downtime, and support the technology needs of an organization.

What are some common challenges a senior system administrator may encounter when managing hybrid cloud environments?

Senior System Administrators often face challenges balancing on-premises infrastructure with cloud-based resources, which can include ensuring consistent security policies, managing data synchronization, and monitoring system performance across multiple platforms. They must also stay updated on evolving technologies and compliance requirements, as well as collaborate closely with development, security, and networking teams. Addressing these complexities requires strong problem-solving skills, robust documentation practices, and a proactive approach to both troubleshooting and automation.

What is the difference between Senior System Administrator vs Network Administrator?

AspectSenior System AdministratorNetwork Administrator
CertificationsCompTIA Server+, Microsoft Certified: Windows Server, Cisco CCNACompTIA Network+, Cisco CCNA, Cisco CCNP
Work EnvironmentData centers, enterprise IT environments, server managementNetwork infrastructure, routing, switching, network security
ResponsibilitiesServer deployment, maintenance, troubleshooting, system upgradesNetwork setup, monitoring, troubleshooting, security management

While both roles require networking and system knowledge, Senior System Administrators focus on server and system management, whereas Network Administrators specialize in network infrastructure. Both roles are essential in enterprise IT, often collaborating to ensure seamless technology operations.

What are the most commonly searched types of System Administrator jobs in Riverside, CA?

The most popular types of System Administrator jobs in Riverside, CA are:

What cities near Riverside, CA are hiring for Senior System Administrator jobs?

Cities near Riverside, CA with the most Senior System Administrator job openings:

Senior System Administrator jobs near you
Infographic showing various Senior System Administrator job openings in Riverside, CA as of August 2026, with employment types broken down into 1% As Needed, 82% Full Time, 14% Part Time, and 3% Contract. Highlights an 92% Physical, 2% Hybrid, and 6% Remote job distribution, with an average salary of $106,653 per year, or $51.3 per hour.

10331: Sr. Engineering Systems Administrator - Microsoft 365

Hyundai Autoever America

Irvine, CA • On-site

$110 - $125/hr

Other

Re-posted 6 days ago

Job description

Sr. Engineering Systems Administrator – Microsoft 365

Location: Irvine, CA 92614 (5 days on-site)

Responsibilities Architecture & Engineering
  • Design and implement enterprise‑grade Microsoft 365 solutions, including Exchange Online, SharePoint Online, OneDrive, Microsoft Teams, and Entra ID.
  • Lead architecture decisions for hybrid and cloud‑first environments.
  • Develop and maintain identity and access strategies (SSO, MFA, Conditional Access).
Administration & Operations
  • Manage and maintain the M365 tenant, ensuring high availability and performance.
  • Oversee user lifecycle management, licensing, and service configurations.
  • Monitor service health and proactively resolve issues.
Security & Compliance
  • Implement and manage security solutions including Microsoft Defender and compliance tools.
  • Configure Data Loss Prevention, retention policies, eDiscovery, and insider risk controls.
  • Ensure adherence to security standards and regulatory requirements.
Identity & Access Management
  • Administer Entra ID (Azure AD), including Conditional Access, identity protection, and RBAC.
  • Manage hybrid identity integrations with on‑prem Active Directory.
  • Implement modern authentication and certificate‑based access.
Collaboration & Productivity
  • Optimize Microsoft Teams, SharePoint, and OneDrive for business productivity.
  • Establish governance for collaboration tools, including lifecycle management and external sharing.
  • Support automation initiatives using Power Platform.
Migration & Integration
  • Lead migrations to Microsoft 365 from on‑prem or third‑party platforms.
  • Integrate M365 services with enterprise applications and SaaS platforms.
Automation & Scripting
  • Develop automation using PowerShell and Microsoft Graph API.
  • Improve operational efficiency through scripting and process automation.
Incident Management
  • Serve as escalation point for complex technical issues.
  • Conduct root cause analysis and implement preventive solutions.
Governance & Documentation
  • Define policies, standards, and best practices for M365 usage.
  • Maintain technical documentation, runbooks, and procedures.
Qualifications
  • Bachelor’s degree in IT/IS or equivalent practical experience; 10+ years in IT Systems Engineering.
  • 10+ years of experience with Microsoft 365 administration and engineering.
  • Microsoft Certification is desired.
  • ITIL awareness highly preferred.
  • Core Microsoft 365 Platform expertise:
    • Architecture, licensing, tenant management.
    • Exchange Online (mail flow, connectors, hybrid setup, security).
    • SharePoint Online (sites, permissions, governance).
    • Microsoft Teams (voice, meetings, policies, integrations).
    • OneDrive (sync, sharing controls, retention).
    • Identity & Access Management (Entra ID, hybrid identity, Conditional Access, MFA, RBAC).
    • Security & Compliance (Microsoft Defender for Office 365, Microsoft Purview, DLP, Insider Risk, eDiscovery, Data Protection).
    • Modern authentication, certificate‑based access, Azure AD Connect, federation, Zero Trust.
    • Governance strategies, external sharing, B2B collaboration.
    • DNS (MX, SPF, DKIM, DMARC), Certificates & TLS, firewalls, proxies, endpoints.
Salary Range

$110,000 – $125,000

Equal Employment Opportunity

Our Company adheres to the equal employment opportunity guidelines set forth by federal, state, and local laws. The information requested on this form is sought in good faith and will not be used to discriminate against the applicant based on race, religion or creed, color, national origin, ancestry, physical disability, mental disability, medical condition, genetic characteristics, marital status, sex or gender (which includes pregnancy, childbirth, or related circumstances), gender identity, gender expression, age, citizenship, sexual orientation, family care or medical leave status, military and veteran status, political affiliation, or any other characteristic protected by federal, state and local laws.

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