7 results for Systems Administrator in Irvine, CA

Systems Administrator

Corona, CA
onsite
Temporary
49.4 - 57.2 USD / Hourly
We are looking for an experienced Systems Administrator to join our team on a long-term contract basis in Corona, California. In this role, you will oversee the maintenance and optimization of both Windows and Linux server environments, ensuring seamless operations and compliance with service-level agreements. This position requires a proactive and collaborative individual who can manage complex systems while driving efficiency and reliability. *** For faster responses, please send updated resumes to julio.enriquez@roberthalf(.com) *** Responsibilities:• Provide operational support for a large-scale server infrastructure, including 600 Windows Servers (Windows Server 2016 and newer) and 120 SUSE Linux Servers.• Perform regular patching, monitor server performance, and ensure service availability in alignment with established service-level agreements.• Manage and upgrade VCenter 7 and newer versions, maintaining 40+ ESXi hosts.• Administer virtual desktop infrastructure (VDI) pools and remote desktop services using Citrix technologies.• Troubleshoot and resolve advanced incidents and service requests escalated from lower support tiers.• Utilize or develop technical tools for tasks such as backups, restoration, failover processes, log analysis, and performance monitoring.• Create and maintain standard operating procedures to ensure security and operational efficiency in systems administration.• Upgrade and manage Dell Technologies storage arrays to meet organizational needs.• Collaborate with application development, security, and project management teams to implement new systems and services.• Develop automation tools and processes to enhance scalability and streamline operations.
2026-02-24T00:00:00Z

Systems Administrator

Ontario, CA
onsite
Permanent
115000 - 120000 USD / Yearly
We are looking for an experienced Systems Administrator to oversee and optimize our Dynamics 365 Finance and Operations (D365FO) platform. In this role, you will ensure the system operates efficiently, securely, and aligns with organizational goals. This position offers the opportunity to collaborate with various teams and stakeholders to enhance system functionality and resolve technical challenges. Responsibilities:• Monitor and maintain the performance, security, and stability of the D365FO environment.• Execute system updates, patches, and upgrades in coordination with Microsoft and internal teams.• Configure and manage user access, roles, and security permissions within D365FO.• Support integrations and troubleshoot issues related to printers, RF guns, and other connected devices.• Set up and manage reporting systems, including Power BI and SharePoint configurations.• Track system performance and logs, ensuring efficient operation and addressing any anomalies.• Maintain app registrations, client keys, and store entity configurations in D365FO.• Ensure compliance with IT policies, licensing requirements, and industry best practices.• Collaborate with business stakeholders, vendors, and IT teams to optimize system functionality.• Provide training and guidance to users to enhance system utilization.• Proficiency in Active Directory and Windows Server.• Hands-on experience with Windows 10 and Dell Technologies.• Familiarity with Citrix Technologies and Dynamics 365 (D365FO).• Strong understanding of SQL databases and Azure.• Knowledge of Power BI and Power Automate for reporting and automation.• Experience with Electronic Data Interchange (EDI) systems.• Solid troubleshooting and problem-solving skills in a technical environment.• Ability to manage system security and ensure compliance with IT policies.
2026-02-16T00:00:00Z

NetSuite Administrator

Long Beach, CA
onsite
Contract / Temporary to Hire
38 - 44 USD / Hourly
We are looking for a skilled NetSuite Administrator with a strong background in accounting and finance to join our team in Long Beach, California. In this Contract to permanent position, you will oversee financial operations, optimize system functionality, and ensure compliance with regulatory standards. This role involves close collaboration with the accounting team to streamline processes, improve reporting capabilities, and enhance overall efficiency. Responsibilities: • Manage financial operations within NetSuite, including accounts receivable, accounts payable, general ledger, and fixed assets. • Facilitate month-end and year-end close activities by performing reconciliations, journal entries, and financial reviews. • Oversee subscription billing processes to ensure accuracy and timely execution. • Support budgeting and forecasting efforts using NetSuite planning tools. • Prepare and coordinate documentation for audits, ensuring compliance with relevant standards. • Configure and maintain NetSuite modules to align with organizational workflows and financial needs. • Develop and refine financial dashboards, reports, and KPIs for leadership review. • Identify and implement process improvements to enhance system accuracy and operational efficiency. • Optimize NetSuite and Salesforce integration to streamline billing and customer issue resolution. • Provide training and support to finance and accounting staff on NetSuite functionalities.
2026-02-20T00:00:00Z

Client Services Administrator

Carlsbad, CA
onsite
Temporary
24 - 28 USD / Hourly
A well-respected professional services firm is seeking a polished Client Services Administrator to support client onboarding, account maintenance, and internal coordination. This role blends administrative precision with high-touch customer interaction.🌟 Day-to-Day Impact<ul><li>Serve as the primary administrative liaison for new and existing clients</li><li>Coordinate document collection, account setup, and service requests</li><li>Maintain meticulous digital and physical client records</li><li>Track service timelines and proactively follow up on outstanding items</li><li>Prepare client correspondence, reports, and presentation materials</li><li>Support leadership with calendar management and meeting logistics</li><li>Identify opportunities to improve client service workflows</li></ul>
2026-02-19T00:00:00Z

Payroll Administrator

Tustin, CA
remote
Permanent
55000 - 75000 USD / Yearly
We are seeking an individual to work very closely with a highly motivated Controller, and to work hard to help bring this growing company to the next level within 1-2 years. The successful candidate will need to be comfortable learning and exploring new processes, also be comfortable rolling up sleeve to ensure that weekly payroll is processed timely and accurately. He or she must have strong organizational skills and ability to prioritize workload in order to meet tight deadlines in a fast-paced and dynamic work environment. Responsibilities • Review daily timesheet submission for hourly employees • Process weekly payroll in eBacon (our payroll software) • Manage employee record and payroll data • Assist HR with employee onboarding • Ensure payroll is compliant with any required prevailing wage requirements • Prepare prevailing wage job’s certified payroll reporting • Ensure our subcontractors also provide timely certified payroll reporting • Responsible for prevailing wage job’ • May perform other duties as assigned Experience • 2+ years of hands-on payroll processing (preferably weekly payroll) • Experience reviewing timesheets, managing payroll data, and maintaining employee records • Familiarity with payroll systems (eBacon preferred; ADP, Paycom, Paychex, etc. also acceptable) • Experience with prevailing wage compliance and certified payroll reporting (e.g., WH-347 or state requirements) • Background in construction or government-contracted environments is a strong plus • Bachelor’s degree in Accounting or related field • Experience supporting a Controller or Accounting team • Exposure to general accounting tasks (e.g., payroll-related journal entries, labor/job costing) • Experience assisting with HR onboarding and entering new hires into payroll systems • Advanced Excel skills (pivot tables, VLOOKUP/XLOOKUP, formulas, reconciliations) • Ability to thrive in a fast-paced, deadline-driven environment • Strong attention to detail and accuracy • Excellent written and verbal communication skills • Collaborative, proactive, and willing to learn new processes Skills • Strong attention to detail • Advanced Microsoft Excel skills, including pivot tables, lookups etc. • Strong written and verbal communication skills • Team player, must be able to collaborate with other teams in the organization • Must have strong work ethic, and have the ability/willingness to work overtime as necessary to get the job done and to meet important deadlines
2026-02-05T00:00:00Z

Office Administrator

Vista, CA
onsite
Temporary
23.5 - 25.5 USD / Hourly
Robert Half is recruiting an Office Administrator for a manufacturing/engineering firm in Vista. You’ll own front‑office operations, executive support, vendor coordination, and light accounting tasks—perfect for a do‑it‑all admin who loves variety and operational polish.What You’ll Do<ul><li>Run day‑to‑day front office: reception, mail/shipments, vendor coordination, supplies, and facilities tickets.</li><li>Support leadership with calendar, travel, meeting logistics, and presentation prep.</li><li>Assist AP/AR: invoice intake/coding, approvals routing, check runs support, deposits, and basic collections.</li><li>Maintain tidy digital filing, SOPs, training logs, and compliance documentation (safety/visitors).</li><li>Coordinate onboarding logistics (badges, desks, IT tickets, handbook acknowledgements).</li><li>Plan team events, all‑hands, and communications; keep the culture organized and upbeat.</li><li>Track expenses, reconcile cards, and prepare simple reports for Operations and Finance.</li><li>Jump into special projects—process clean‑ups, form templates, and light HR admin.</li></ul>
2026-03-02T00:00:00Z

Office Administrator

Vista, CA
onsite
Temporary
25 - 27 USD / Hourly
A respected manufacturing/engineering company in Vista is adding a highly organized, hands‑on Office Administrator to keep front‑office operations running smoothly. You’ll blend reception, purchasing support, light AP/AR assistance, travel coordination, and executive admin tasks—perfect for someone who enjoys variety, ownership, and being the go‑to problem solver. What You’ll Do<ul><li>Lead front office operations: phones, visitor check‑in, mail/parcel handling, facilities coordination, supplies.</li><li>Support purchasing with vendor onboarding, quotes, PO creation, tracking deliveries, and resolving discrepancies.</li><li>Assist accounting with invoice coding, approvals routing, check runs support, deposits, and basic collections follow‑up.</li><li>Coordinate travel, calendars, meeting logistics, and on‑site events for leadership.</li><li>Maintain accurate digital filing, SOPs, and compliance documentation (safety logs, training files, visitor records).</li><li>Prepare reports and spreadsheets for leadership; help improve processes and forms.</li><li>Liaise with production floor managers to synchronize deliveries, job tickets, and priority orders.</li><li>Back up HR admin tasks: onboarding packets, I‑9 support, badge/keys, and training sign‑offs.</li></ul>
2026-02-27T00:00:00Z