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5 results for Systems Administrator in Corona, CA

IT System Administrator

Rowland Heights, CA
onsite
Temporary / Contract
45 - 50 USD / Hourly
Robert Half is seeking an experienced Systems Administrator to support, maintain, and improve enterprise IT infrastructure. This role will be responsible for managing servers, networks, cloud services, security tools, and end-user environments while ensuring system reliability, performance, and security. The ideal candidate will have hands-on experience with Windows Server environments, Microsoft 365, virtualization, networking, firewalls, backups, and infrastructure troubleshooting. This position requires a proactive problem solver who can manage daily operations while supporting ongoing technology initiatives. <ul><li>Administer, maintain, and troubleshoot Windows Server environments</li><li>Manage Active Directory, Group Policy, user accounts, permissions, and access controls</li><li>Support Microsoft 365 administration, including Exchange Online, Teams, SharePoint, OneDrive, and user management</li><li>Monitor system performance, availability, and security of servers and infrastructure</li><li>Perform server maintenance, patching, upgrades, and troubleshooting</li><li>Support virtualization environments including VMware and/or Hyper-V</li><li>Configure, maintain, and troubleshoot network infrastructure including switches, routers, wireless access points, VLANs, and VPNs</li><li>Support firewall administration, rule reviews, security policies, and connectivity troubleshooting</li><li>Manage backup solutions, disaster recovery processes, and system restoration testing</li><li>Assist with cloud infrastructure support across platforms such as Azure and AWS</li><li>Troubleshoot hardware, software, and infrastructure issues escalated from support teams</li><li>Implement and maintain endpoint security tools, MFA, antivirus, and security best practices</li><li>Create and maintain technical documentation, system diagrams, and standard operating procedures</li><li>Work with vendors and third-party providers to resolve technical issues</li><li>Participate in infrastructure projects, upgrades, migrations, and deployments</li></ul>
2026-07-11T00:00:00Z

IT Systems Manager

Irvine, CA
onsite
Temporary / Contract
59.375 - 68.75 USD / Hourly
We are looking for an IT Systems Manager to oversee and strengthen a modern enterprise technology environment in Irvine, California. This Long-term Contract position will focus on cloud services, infrastructure reliability, endpoint management, and security operations while supporting business-critical systems across the organization. The ideal candidate brings deep technical expertise across Microsoft 365, Azure, AWS, networking, and compliance-minded IT practices in a regulated setting. Responsibilities: • Lead administration and optimization of Microsoft 365 services, including user access, collaboration tools, and platform governance. • Manage identity and access controls across Azure AD / Entra ID and Active Directory to support secure, reliable authentication. • Oversee SharePoint Online, Intune, and endpoint management solutions to improve device performance, compliance, and user support. • Maintain and enhance network infrastructure, firewalls, and Meraki environments to ensure connectivity, stability, and protection. • Support cloud operations across Azure, AWS, and other SaaS platforms, including configuration, monitoring, and service improvement. • Direct backup, recovery, and business continuity processes to protect critical data and reduce operational risk. • Implement and monitor endpoint security and broader information security measures aligned with organizational standards. • Contribute to migration-related initiatives and system changes by coordinating technical execution, documentation, and risk controls. • Prepare and maintain technical records, validation materials, and audit-ready documentation in support of regulated IT operations.
2026-07-23T00:00:00Z

Data Loss Prevention Security Administrator

Los Angeles, CA
remote
Permanent / Full Time
150000 - 165000 USD / Yearly
Job TitleData Loss Prevention (DLP) Engineer Company OverviewA globally recognized professional services organization based in Los Angeles, California, with offices across major U.S. cities, is committed to delivering high-impact services in a highly regulated, client-centric environment. The organization prioritizes data protection, security, and compliance, leveraging advanced technology to safeguard sensitive information across a complex, distributed enterprise. Their technology teams play a critical role in maintaining trust, confidentiality, and operational excellence. Role SummaryThe DLP Engineer will serve as the dedicated owner of the enterprise Data Loss Prevention program, supporting a distributed workforce anchored in Los Angeles, California. This role is responsible for designing, implementing, and optimizing DLP strategies to protect sensitive data across endpoint, network, email, and cloud environments. The position is highly collaborative, working closely with IT, security teams, and business stakeholders to ensure secure data handling and regulatory compliance. Key Responsibilities<ul><li>Design, implement, and manage enterprise DLP solutions across endpoint, network, email, and cloud platforms</li><li>Develop, tune, and maintain DLP policies, rules, and classifiers to detect and prevent data loss</li><li>Monitor DLP alerts, investigate potential data incidents, and support incident response processes</li><li>Partner with cross-functional teams to align DLP controls with business requirements and data protection policies</li><li>Integrate DLP systems with security tools such as SIEM and endpoint detection platforms</li><li>Support data classification initiatives and enforce secure data handling standards</li><li>Optimize DLP performance by reducing false positives and improving detection accuracy</li><li>Manage DLP coverage for collaboration and cloud tools including productivity and file-sharing platforms</li><li>Produce reports and metrics on DLP activity, risks, and program effectiveness</li><li>Collaborate with stakeholders on compliance requirements, audits, and data privacy initiatives</li></ul>Compensation & Benefits<ul><li>$150,000–$160,000 + discretionary bonus</li><li>Comprehensive medical, dental, and vision coverage</li><li>401(k) with employer contributions and profit-sharing plan</li><li>Paid vacation, sick time, and personal days</li><li>Competitive benefits package supporting overall well-being</li></ul>Additional Details<ul><li>Remote work environment aligned to core collaboration hours</li><li>Must be located near a major company office for occasional in-person needs: Atlanta, Austin, Boston, Chicago, Dallas, Houston, Los Angeles (HQ in DTLA), Miami, New York, Salt Lake City, San Francisco, Seattle, Silicon Valley, Washington D.C., Wilmington</li><li>Structured schedule aligned with standard business hours</li><li>High-impact role within a centralized information security team</li></ul>
2026-07-15T00:00:00Z

Payroll Administrator

Pasadena, CA
onsite
Temporary / Contract
25 - 26 USD / Hourly
Ongoing opportunities for ambitious Payroll Administrators. As a Payroll Administrator, you will be responsible for data entry, reconciliation of timecards, paycheck distribution and providing statements to various departments. This temporary assignment with a well known company offers great career growth. Please apply today for immediate consideration.Payroll Processing:· Calculate and process employee salaries, wages, bonuses, and deductions.· Ensure accuracy in time and attendance records and apply relevant payroll policies.Data Entry and Record Keeping:· Enter and maintain employee data in the payroll system.· Keep accurate records of employee information, tax withholdings, and other payroll-related details.Tax Compliance:· Ensure compliance with tax regulations and statutory requirements.· Calculate and withhold income taxes, Social Security contributions, and other deductions as required.Benefits Administration:· Administer employee benefits programs, such as health insurance and retirement plans.· Deduct and remit employee contributions to benefit plans.Payroll Reporting:· Prepare and distribute payroll reports to management and relevant departments.· Generate reports for tax purposes, including year-end reports and W-2 forms.
2026-07-09T00:00:00Z

Payroll Administrator

Colton, CA
onsite
Permanent / Full Time
60000 - 62400 USD / Yearly
We are looking for a Payroll Administrator to oversee accurate and timely payroll operations for a workforce of approximately 350 employees in Colton, California. This position is ideal for someone who brings recent experience managing payroll in a high-volume environment and can confidently handle compliance, deductions, and employee payroll support. The role also partners closely with HR and accounting to maintain reliable records, address payroll issues, and support reporting needs. Please call Brigitte Mendez @ 909-717-4037 of all your Robert Half Recruiter directly. Responsibilities:• Manage bi-weekly payroll processing for roughly 350 employees, ensuring all payments are completed correctly and within established deadlines.• Examine timesheets, earnings, tax withholdings, and other payroll entries to identify and correct discrepancies before final submission.• Maintain organized and accurate payroll records while updating employee information to preserve data accuracy.• Handle garnishments, child support withholdings, and benefits-related deductions in accordance with applicable requirements.• Respond to employee questions related to pay, deductions, and payroll variances, and resolve issues in a timely manner.• Produce payroll summaries and detailed reports while assisting accounting with reconciliations and month-end payroll support.• Monitor payroll practices for adherence to federal, California, and local regulations, including wage and hour requirements.• Work with HR to process payroll changes tied to new hires, separations, compensation updates, and other employee status changes.
2026-07-23T00:00:00Z