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9 results for Systems Administrator in Ontario, CA

Systems Administrator

Santa Monica, CA
onsite
Permanent / Full Time
110000 - 140000 USD / Yearly
SCADA Systems Analyst OverviewA well-established public sector organization serving a large and dynamic community is seeking a SCADA Systems Analyst to support critical infrastructure operations. Based in Los Angeles, CA, this organization is dedicated to delivering reliable utility and operational services through innovative technology solutions. The team values collaboration, continuous improvement, and the effective use of automation and control systems to enhance service delivery. The SCADA Systems Analyst is responsible for the design, implementation, maintenance, and optimization of Supervisory Control and Data Acquisition (SCADA) and industrial control systems that support essential utility operations. This role plays a key part in ensuring system reliability, operational efficiency, and data integrity while partnering with internal stakeholders, vendors, and consultants. The position supports mission-critical infrastructure and contributes to long-term technology and automation initiatives. Key Responsibilities<ul><li>Design, implement, configure, and maintain SCADA, DCS, HMI, and related control system applications.</li><li>Provide technical support, troubleshooting, and administration for industrial automation systems and associated hardware.</li><li>Develop, maintain, and optimize reports, queries, dashboards, and operational data solutions.</li><li>Program, troubleshoot, and support PLCs, control modules, instrumentation, and network-connected equipment.</li><li>Assist in designing and maintaining networks that support industrial control and automation environments.</li><li>Manage system upgrades, enhancements, migrations, and integration projects from planning through implementation.</li><li>Create and maintain technical documentation, diagrams, schematics, system configurations, and operational procedures.</li><li>Collaborate with vendors, consultants, and internal teams to support new installations, upgrades, and maintenance activities.</li><li>Support contract administration, procurement activities, technology evaluations, and budget planning related to control systems.</li><li>Deliver end-user training and provide ongoing technical guidance to operational and maintenance teams.</li></ul>Additional Details<ul><li>Work Model: Hybrid schedule with three on-site days per week (Tuesday, Wednesday, and Thursday)</li><li>Participation in a rotating on-call schedule supporting critical systems that operate 24/7 (approximately two times per month)</li><li>Position involves both office-based work and support of operational environments</li><li>Occasional physical activity may be required, including bending, kneeling, reaching, and working in confined spaces</li></ul>Compensation & Benefits<ul><li>Competitive salary ranging from $110,000 to $137,000 annually</li><li>Additional on-call compensation equal to 8% of the employee’s hourly rate during scheduled on-call assignments</li><li>Comprehensive benefits package, including healthcare, retirement, and paid time off</li><li>Opportunities for professional development and technical training</li><li>Stable, mission-driven work environment with long-term career growth potential</li></ul>
2026-07-14T00:00:00Z

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.
2026-07-14T00:00:00Z

Network Administrator

Los Angeles, CA
onsite
Permanent / Full Time
110000 - 120000 USD / Yearly
Job TitleNetwork Administrator Company OverviewA well-established global lifestyle and retail organization based in Los Angeles, California, is seeking a hands-on Network Administrator to support its growing corporate and retail technology operations. The company operates a dynamic, fast-paced environment with a strong emphasis on innovation, reliability, and seamless customer experience across multiple locations. Role SummaryThe Network Administrator will play a critical role in maintaining the stability, security, and performance of network and IT systems across the organization’s corporate office and distributed retail footprint in Los Angeles, CA and beyond. This is a highly hands-on, individual contributor role focused on infrastructure support, end-user assistance, and retail technology operations. You will serve as a key technical resource, ensuring systems run efficiently while proactively resolving issues and supporting business growth. Key Responsibilities<ul><li>Configure, maintain, and troubleshoot network infrastructure including routers, switches, firewalls, VLANs, and wireless systems</li><li>Monitor network performance, uptime, and security; diagnose and resolve connectivity issues</li><li>Administer and support enterprise networking hardware and surveillance systems across multiple locations</li><li>Ensure reliable connectivity for point-of-sale systems and in-store technologies</li><li>Support new site build-outs, including networking, AV systems, and vendor coordination</li><li>Provide end-user support including hardware setup, troubleshooting, and ticket resolution</li><li>Manage and triage IT support requests across corporate and retail environments</li><li>Administer user access, onboarding/offboarding processes, and system permissions</li><li>Maintain IT asset inventory, ticketing systems, and documentation</li><li>Collaborate with internal stakeholders and external vendors to ensure timely issue resolution and operational continuity</li></ul> Compensation & Benefits<ul><li>$110,000 – $120,000 </li><li>Comprehensive medical, dental, and vision benefits</li><li>Competitive overall benefits package</li></ul> Additional Details<ul><li>Work model: On-site</li><li>Individual contributor role with high ownership and visibility</li><li>Opportunity to work closely with technology leadership</li><li>Fast-paced environment supporting both corporate and retail operations</li></ul>
2026-06-17T00:00:00Z

Compliance Administrator

Pomona, CA
onsite
Temporary / Contract
38 - 48 USD / Hourly
We are looking for a detail-oriented Compliance Administrator to support compliance and ethics operations for a healthcare-focused organization in Pomona, California. This Compliance Administrator position centers on helping maintain regulatory adherence, strengthening internal controls, and promoting staff awareness of privacy, consent, and patient rights obligations. The Compliance Administrator works closely with leadership to coordinate program activities, review risk areas, and contribute to a culture of accountability and ethical practice. Key Responsibilities:• Partner with the Chief Compliance and Privacy Officer to support the day-to-day coordination and ongoing administration of the compliance and ethics program.• Work with departments across the organization to help create, revise, distribute, and retain compliance-related policies, procedures, and supporting documentation.• Monitor applicable federal, state, county, and organizational requirements and help communicate regulatory updates to staff in a clear and practical manner.• Deliver guidance and education on topics such as privacy, confidentiality, informed consent, patient rights, complaints, and grievance processes.• Receive, document, and help review complaints, grievances, provider change requests, and privacy-related concerns, ensuring timely follow-up and proper tracking.• Respond to internal hotline activity, route issues for appropriate follow-up, and maintain records used to identify patterns and improvement opportunities.• Assist with audits, assessments, and investigative reviews to identify compliance risks, summarize findings, and support corrective action planning.• Contribute to regulatory and contractual readiness efforts, including support for Medi-Cal site certifications and Medicare revalidation activities.• Follow all required safety standards, organizational policies, and mandated procedures while carrying out assigned responsibilities.\ Benefits: Health, Dental, Vision, 401k, and Sick Time Off.
2026-07-07T00:00:00Z

Control Systems Analyst II

Chino, CA
onsite
Temporary / Contract
100 - 120 USD / Hourly
We are seeking a Control Systems Analyst II who can serve as a lead technical resource responsible for the design, support, maintenance, and optimization of industrial automation and control systems in Chino, CA. This role supports critical plant operations through PLC, SCADA, DCS, HMI, and network administration while providing guidance and training to technical staff. Key Responsibilities<ul><li>Design, program, configure, and troubleshoot PLC, SCADA, DCS, HMI, and industrial control systems.</li><li>Support automation networks, communications infrastructure, LAN/WAN environments, telemetry, radio, and microwave systems.</li><li>Perform software and firmware upgrades, system enhancements, and process automation improvements.</li><li>Troubleshoot complex hardware, software, instrumentation, and network issues.</li><li>Participate in automation, instrumentation, and controls projects from design review through testing and startup.</li><li>Develop and maintain technical documentation, SOPs, system diagrams, and operating procedures.</li><li>Train end users and provide technical guidance to operations and maintenance teams.</li><li>Lead and coordinate work assignments for technical staff and contractors.</li><li>Evaluate new technologies, recommend system improvements, and support long-term automation strategies.</li></ul>
2026-07-02T00:00:00Z

System Implementation Accountant

Cerritos, CA
onsite
Permanent / Full Time
70000 - 95000 USD / Yearly
We are looking for an experienced Sr. Project Accountant to join a growing team in California. This role is ideal for a finance specialist who combines strong technical accounting knowledge with the ability to lead projects that improve accuracy, efficiency, and reporting quality. The position will play a key part in strengthening financial operations, supporting compliance, and partnering across departments to deliver well-managed accounting initiatives. Responsibilities: • Oversee project-based accounting activities from initial planning through completion, ensuring deadlines, deliverables, and cross-functional coordination stay on track. • Prepare and review journal entries, maintain general ledger accuracy, and complete detailed account reconciliations to support reliable financial reporting. • Lead efforts to enhance accounting workflows by introducing process improvements, automation opportunities, and clearly documented standard operating procedures. • Support financial systems administration and related initiatives, including platform integrations, implementation support, and data validation or cleanup efforts. • Manage treasury-related tasks such as cash forecasting, bank reconciliations, fund transfers between accounts, and wire transaction processing. • Contribute to internal control compliance by assisting with audit readiness, required documentation, and regulatory obligations such as escheatment and insurance-related support. • Develop and maintain advanced Excel-based reports, analyze financial trends, and identify opportunities to improve cost efficiency and reporting visibility. • Partner with vendors and internal stakeholders to coordinate third-party tools, maintain provider records, and assess service effectiveness. • Collaborate with accounting and business teams to protect financial data integrity and ensure consistent execution across multiple concurrent projects.
2026-06-19T00:00:00Z

Business Systems Analyst

Burbank, CA
onsite
Temporary / Contract
59 - 61 USD / Hourly
We are looking for an experienced Business Systems Analyst to support privacy-focused business and technology initiatives in Southern California. This Long-term Contract position will work closely with business leaders, compliance partners, and technical teams to define needs, improve processes, and shape practical solutions that align with regulatory expectations and organizational goals. The role requires strong analytical thinking, clear documentation, and the ability to guide discussions with both technical and non-technical stakeholders in an onsite environment four days per week. Responsibilities:• Partner with project leaders, business sponsors, and key stakeholders to define initiative goals, expected outcomes, and overall business scope.• Examine complex operational challenges and convert findings into structured, scalable recommendations that support long-term business needs.• Lead discovery sessions with senior stakeholders and subject matter experts to capture detailed business needs, process expectations, and user scenarios.• Organize and facilitate workshops, interviews, and stakeholder meetings to gather requirements, clarify priorities, and build consensus across teams.• Translate business needs into well-defined functional requirements and communicate them clearly to developers, architects, and delivery teams.• Review current processes and systems to identify gaps, inefficiencies, risks, and opportunities for improvement, including privacy and compliance considerations.• Produce and maintain core analysis artifacts such as requirements documents, process maps, workflow diagrams, mock-ups, and traceability records.• Collaborate with cross-functional teams to support solution design, validate that outcomes meet business and regulatory expectations, and assist with audit readiness activities.• Support planning and execution activities across the project lifecycle, ensuring requirements remain aligned through design, testing, and implementation.
2026-07-14T00:00:00Z

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