15 Results for Systems Security Administrator Jobs in Ontario, CA

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Systems Administrator

Los Angeles, CA
onsite
Permanent / Full Time
125000 - 145000 USD / Yearly
Systems Administrator OverviewA growing organization is seeking a Systems Administrator to support enterprise cloud platforms, end-user technologies, identity management, and core infrastructure services. This individual will play a key role in maintaining secure, scalable, and reliable technology operations while supporting ongoing modernization and automation initiatives. The ideal candidate combines strong systems administration experience with a proactive approach to process improvement, platform management, and end-user support. Responsibilities<ul><li>Administer and support enterprise productivity, collaboration, and cloud platforms</li><li>Manage identity, access, authentication, and user lifecycle processes</li><li>Support endpoint management, device administration, and security initiatives</li><li>Maintain backup, recovery, and business continuity processes</li><li>Assist with integration and administration of enterprise applications and SaaS platforms</li><li>Develop and maintain automation solutions to improve operational efficiency</li><li>Monitor platform health, system performance, and operational reliability</li><li>Troubleshoot and resolve complex infrastructure and application issues</li><li>Maintain technical documentation, standards, and operational procedures</li><li>Partner with internal stakeholders to support technology initiatives and business operations</li></ul>
2026-10-21T00:00:00Z

Systems Administrator

Beverly Hills, CA
onsite
Temporary / Contract
45.9135 - 53.163 USD / Hourly
We are seeking a Systems Administrator to support Microsoft 365, endpoint management, workstation deployments, and end-user support in a modern Microsoft cloud environment. This role will be responsible for managing Microsoft Entra ID, Intune, Windows devices, user access, security policies, and device lifecycle activities while delivering excellent customer service to end users. Responsibilities<ul><li>Administer and support Microsoft Entra ID, Microsoft Intune, and Microsoft 365 environments.</li><li>Manage user accounts, groups, permissions, licensing, devices, and access controls.</li><li>Deploy, configure, and support Windows 11 laptops and workstations.</li><li>Migrate devices to Entra ID Join and enroll endpoints into Intune.</li><li>Configure and maintain Intune policies, application deployments, device compliance, and endpoint security controls.</li><li>Support Windows Autopilot, Conditional Access, BitLocker, Windows Hello for Business, and Microsoft Defender for Endpoint.</li><li>Provide Tier II/Tier III support for workstation, authentication, Microsoft 365, hardware, software, and mobile device issues.</li><li>Support BYOD, MDM/MAM, and mobile device administration for iOS and Android devices.</li><li>Assist with Active Directory, file shares, printers, and general infrastructure administration.</li><li>Create and maintain technical documentation, deployment procedures, and support knowledge articles.</li><li>Participate in IT infrastructure, security, and cloud transformation projects.</li><li>Provide white-glove support to employees and leadership during device deployments and migrations.</li></ul>
2026-10-28T00:00:00Z

Systems Administrator

Los Angeles, CA
onsite
Permanent / Full Time
110000 - 140000 USD / Yearly
Systems Administrator OverviewEstablished organization is seeking a Systems Administrator to support critical operational technology environments. This position is responsible for maintaining automation platforms, supporting system integrations, and improving the reliability and performance of business-critical operational systems. Key Responsibilities<ul><li>Administer, maintain, and enhance industrial automation and operational technology platforms.</li><li>Support system integrations between field devices, applications, databases, and reporting tools.</li><li>Configure, troubleshoot, and optimize control systems, instrumentation, and monitoring environments.</li><li>Develop reports, dashboards, and data solutions to support operational decision-making.</li><li>Assist with implementation, testing, upgrades, and maintenance of automation and control system technologies.</li><li>Partner with business stakeholders, vendors, and technical teams to deliver technology initiatives.</li><li>Maintain documentation, technical procedures, system configurations, and support materials.</li><li>Participate in project planning, vendor coordination, and ongoing operational improvements.</li></ul>
2026-10-28T00:00:00Z

Security Architect

Los Angeles, CA
onsite
Permanent / Full Time
180000 - 230000 USD / Yearly
Security Architect Company OverviewA growing organization is seeking a Security Architect to support enterprise security initiatives across infrastructure, applications, cloud services, and business systems. This role offers an opportunity to work within a collaborative technology environment focused on modernizing security practices and enabling business growth through secure technology solutions. Role SummaryThe Security Architect will play a key role in shaping and advancing the organization's security program. This individual will work closely with technology and business stakeholders to establish security standards, provide architectural guidance, assess risk, and support the secure adoption of new technologies. The ideal candidate combines strategic thinking with hands-on technical expertise and enjoys solving complex security challenges across a diverse technology environment. Key Responsibilities<ul><li>Develop and maintain security architecture standards, guidelines, and best practices.</li><li>Partner with technology teams to integrate security considerations into projects and operational initiatives.</li><li>Evaluate systems, platforms, and technology solutions to identify and address security risks.</li><li>Provide architectural guidance for cloud, infrastructure, application, and data protection initiatives.</li><li>Support the development of security roadmaps aligned with business and technology objectives.</li><li>Conduct architecture reviews and recommend security improvements across enterprise environments.</li><li>Assist in establishing governance processes, security controls, and risk management practices.</li><li>Collaborate with stakeholders to improve cybersecurity maturity and operational effectiveness.</li><li>Support the evaluation and adoption of emerging technologies and security solutions.</li><li>Contribute to continuous improvement initiatives that strengthen the organization's overall security posture.</li></ul>
2026-10-23T00:00:00Z

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>
2026-10-28T00:00:00Z

Security Engineer

Los Angeles, CA
remote
Permanent / Full Time
130000 - 140000 USD / Yearly
Security Engineer OverviewA leading global professional services organization is seeking a Security Engineer with Third-Party Risk experience. The Security Engineer plays a critical role in safeguarding the organization’s ecosystem by evaluating the security posture of external vendors and partners. This role focuses on conducting technical risk assessments across SaaS platforms, cloud environments, and hosted services while ensuring compliance with industry standards and client expectations. Based remotely, this position partners closely with IT security leadership and cross-functional stakeholders to mitigate risk and strengthen third-party security practices. Key Responsibilities<ul><li>Conduct technical security assessments of third-party vendors across SaaS platforms, cloud infrastructure, and hosted services</li><li>Evaluate vendor security controls, including access management, encryption, and data protection practices</li><li>Review vendor documentation such as SOC 2 reports, ISO certifications, and security testing results</li><li>Assess cloud environments (AWS, Azure, GCP) for security configurations, segmentation, and identity controls</li><li>Analyze API security, including authentication methods, data transmission, and vulnerability risks</li><li>Evaluate DevSecOps maturity, including secure development practices and CI/CD pipeline security</li><li>Track and manage vendor risk findings, ensuring remediation efforts are completed in a timely manner</li><li>Support client-facing security activities, including questionnaires, audits, and compliance reviews</li><li>Collaborate with internal stakeholders to align vendor security with regulatory requirements (e.g., GDPR, CCPA)</li><li>Prepare risk reports and present key findings to leadership and cross-functional teams</li></ul>Additional Details<ul><li>Remote (must reside in proximity to a supported office region)</li><li>Core hours: 8:00 AM – 4:00 PM PT (7-hour workday)</li><li>Occasional travel may be required for vendor assessments</li><li>Collaborative environment with direct exposure to senior leadership and security stakeholders</li></ul>
2026-10-28T00:00:00Z

Systems Engineer

Newport Beach, CA
onsite
Permanent / Full Time
100000 - 120000 USD / Yearly
We are looking for a Systems Engineer to support and strengthen the technology environment for a dynamic school community in Newport Beach, California. This role focuses on keeping core infrastructure stable, secure, and well maintained while also delivering responsive technical support for users and classrooms. The ideal candidate brings strong hands-on networking experience, a service-oriented mindset, and the ability to manage both daily operations and longer-term improvement initiatives. Responsibilities: • Oversee the performance and upkeep of wired and wireless infrastructure by deploying, configuring, validating, and documenting network equipment in alignment with established technical designs. • Support daily network operations to promote dependable connectivity and minimize service interruptions across campus systems. • Review system activity, alerts, and performance data to identify issues early and maintain overall network health. • Administer access controls, security configurations, and user account setup across systems to protect resources and ensure appropriate permissions. • Use security and vulnerability management tools to evaluate risk, monitor exposure, and help maintain a secure technology environment. • Execute infrastructure and systems projects involving hardware installation, software deployment, testing, and integration while coordinating work to avoid disruption to existing services. • Maintain clear technical records covering system setups, network layouts, and troubleshooting procedures in collaboration with technology leadership. • Provide hands-on support to faculty, staff, and students for technology-related needs, including event support, help desk requests, and resolution of hardware or software issues. • Partner with the broader Technology Team on data stewardship, continuous improvements, and other assigned initiatives that enhance school operations. • Assist with desktop, printer, and mobile device support across Windows, Mac, iOS, and Android environments as needed.
2026-10-22T00:00:00Z

Systems Engineer

Signal Hill, CA
onsite
Temporary / Contract
35.625 - 41.25 USD / Hourly
We are looking for a Systems Engineer to support and enhance core infrastructure operations for a restaurant and catering organization in Signal Hill, California. This Long-term Contract position focuses on maintaining reliable server, identity, messaging, and remote access environments while helping teams resolve complex technical issues. The role is well suited for someone who is comfortable working across Microsoft-based systems and delivering stable, secure platform support in a fast-paced business setting. Responsibilities: • Administer and support Active Directory and Azure Active Directory environments, including user access, group policies, and directory health. • Maintain Microsoft Windows Server infrastructure to ensure strong performance, availability, and security across business systems. • Provide ongoing support for Citrix technologies, resolving access issues and improving the end-user experience for remote and on-site teams. • Manage Microsoft Exchange operations, including mailbox administration, service reliability, and issue resolution. • Monitor system performance, troubleshoot infrastructure problems, and implement corrective actions to minimize downtime. • Partner with internal technology teams to apply updates, strengthen security controls, and maintain system documentation. • Assist with infrastructure-related projects and operational improvements as needed, including work tied to platform or environment changes. • Deliver technical support and root-cause analysis for escalated server, directory, and messaging incidents.
2026-10-28T00:00:00Z

Systems Engineer

Los Angeles, CA
onsite
Permanent / Full Time
130000 - 150000 USD / Yearly
Systems Engineer OverviewAn organization is seeking a Systems Engineer to support enterprise cloud technologies, business applications, automation initiatives, and IT infrastructure operations. This individual will help improve system reliability, streamline operational processes, and support ongoing technology modernization efforts across the organization. Responsibilities<ul><li>Administer and support enterprise cloud and collaboration platforms</li><li>Develop and maintain automation solutions to improve operational efficiency</li><li>Support identity and access management initiatives</li><li>Manage endpoint technologies and related platform services</li><li>Assist with system integrations and application support efforts</li><li>Monitor platform performance, availability, and operational health</li><li>Troubleshoot infrastructure, cloud, and application-related issues</li><li>Create and maintain technical documentation and operational procedures</li><li>Collaborate with technical teams and business stakeholders on technology initiatives</li><li>Identify opportunities for process improvement, automation, and operational excellence</li></ul>
2026-10-16T00:00:00Z

AV Systems Administrator

Los Angeles, CA
onsite
Permanent / Full Time
121000 - 145000 USD / Yearly
Systems Administrator Company OverviewA growing manufacturing organization is seeking a Systems Administrator with AV experience to support enterprise collaboration, live events, and IT operations. Role SummaryThis role combines systems administration, scripting, IT automation, and live AV production. The ideal candidate has experience running executive and company-wide events while also being comfortable troubleshooting complex IT issues, developing automation, and partnering with infrastructure and security teams. Key Responsibilities<ul><li>Support and maintain enterprise audiovisual, conferencing, and collaboration technologies.</li><li>Provide hands-on technical support for meetings, presentations, live events, and shared meeting spaces.</li><li>Configure, troubleshoot, and improve conference room and audiovisual systems.</li><li>Develop scripts, integrations, and automation to streamline IT operations and support processes.</li><li>Support IT service management workflows and resolve escalated technical issues.</li><li>Document solutions, identify recurring issues, and implement long-term improvements.</li><li>Collaborate with infrastructure, security, and other technology teams on projects and operational initiatives.</li></ul>Additional Details<ul><li>Work model: On-site, five days per week</li><li>Occasional travel required</li><li>Hands-on role supporting both AV and corporate IT environments</li><li>Candidates must meet applicable U.S. employment and regulatory requirements</li></ul>
2026-10-23T00:00:00Z

Security Analyst

Los Angeles, MA
remote
Permanent / Full Time
110000 - 120000 USD / Yearly
Security Analyst Company Overview A manufacturing organization is seeking a Security Analyst to help protect its technology environment and strengthen cybersecurity operations. This role offers broad exposure to security monitoring, incident response, risk reduction, and security improvement initiatives. Role Summary The Security Analyst will monitor and respond to security threats while helping maintain and improve enterprise security controls. The ideal candidate is hands-on, analytical, and comfortable working across security operations, vulnerability management, and incident response. Key Responsibilities<ul><li>Monitor and investigate security alerts and suspicious activity.</li><li>Support incident response, investigation, and remediation efforts.</li><li>Maintain and improve security monitoring and protection technologies.</li><li>Identify vulnerabilities and coordinate remediation activities.</li><li>Support data protection, identity, endpoint, and cloud security initiatives.</li><li>Analyze security trends and recommend improvements to controls and processes.</li><li>Collaborate with technology teams on security and risk-reduction initiatives.</li></ul>Additional Details<ul><li>Work model: Primarily remote</li><li>Occasional travel may be required</li><li>Full-time position</li></ul>
2026-10-28T00:00:00Z

Sr Cybersecurity Engineer

Long Beach, CA
onsite
Temporary / Contract
75 - 85 USD / Hourly
Our client is seeking a Senior Cybersecurity Engineer to lead security engineering, architecture, and operational security initiatives across enterprise systems, cloud platforms, and critical infrastructure environments. This role combines hands-on technical expertise with strategic security leadership. What You'll Be Doing<ul><li>Assess and improve the organization's overall cybersecurity posture</li><li>Lead vulnerability management, remediation efforts, and security risk assessments</li><li>Design and implement enterprise security architectures and controls</li><li>Manage and optimize security technologies including SIEM, SOAR, XDR, EDR, IAM, and DLP</li><li>Drive incident response, threat hunting, and security monitoring activities</li><li>Develop and maintain cybersecurity policies, standards, and governance frameworks</li><li>Secure cloud, network, server, endpoint, and hybrid environments</li><li>Partner with infrastructure, engineering, and business teams to embed security into projects</li><li>Conduct security reviews, penetration test coordination, and compliance assessments</li><li>Lead security modernization and remediation initiatives</li><li>Provide guidance to leadership on emerging threats and risk mitigation strategies</li><li>Mentor security engineers and serve as a cybersecurity subject matter expert</li></ul>
2026-10-24T00:00:00Z

System Support Specialist

Signal Hill, CA
onsite
Temporary / Contract
47 - 60 USD / Hourly
We are supporting a hospitality organization supporting 26 restaurant locations across multiple brands. Our client is seeking a hands-on Store/Restaurant Systems Support Engineer to provide Level 2/3 technical support for restaurant technology, POS systems, payment devices, networking equipment, and store operations technology. This role is ideal for someone who enjoys troubleshooting complex issues, working directly with hardware, supporting multiple locations, and occasionally traveling onsite when hands-on support is needed. What You'll Do<ul><li>Provide Level 2/3 support for POS systems, payment terminals, kitchen display systems (KDS), printers, and restaurant technology</li><li>Troubleshoot networking issues involving routers, switches, wireless access points, and connectivity</li><li>Support restaurant managers and staff with escalated technical issues across multiple locations</li><li>Travel periodically to restaurant locations for installations, maintenance, upgrades, and repairs</li><li>Assist with new store openings, technology rollouts, and hardware deployments</li><li>Coordinate with third-party vendors for escalated support and warranty repairs</li><li>Maintain documentation, ticketing updates, and root cause analysis</li><li>Provide occasional desktop support for corporate users, including Windows, Microsoft 365, Google Workspace, hardware setup, and onboarding activities</li></ul>
2026-10-24T00:00:00Z

Endpoint Administrator

Santa Monica, CA
onsite
Temporary / Contract
35 - 40 USD / Hourly
Robert Half is seeking a hands-on Microsoft Entra ID and Intune Project Administrator to support enterprise endpoint management, identity modernization, and Microsoft 365 initiatives. This role will focus on deploying and optimizing Microsoft Intune, Entra ID (Azure AD), device compliance policies, conditional access, and endpoint security controls across a Windows environment. Responsibilities<ul><li>Lead Microsoft Intune deployments, configuration, and administration.</li><li>Migrate and manage devices within Microsoft Entra ID (Azure AD).</li><li>Configure and maintain device enrollment, Autopilot, compliance policies, and configuration profiles.</li><li>Implement Conditional Access, MFA, and identity governance best practices.</li><li>Manage endpoint security policies, including Microsoft Defender integrations.</li><li>Support Windows 10/11 migrations and modern workplace initiatives.</li><li>Troubleshoot device management, authentication, and access-related issues.</li><li>Partner with infrastructure, security, and desktop support teams during project execution.</li><li>Create technical documentation, procedures, and knowledge transfer materials.</li><li>Monitor and remediate compliance, security, and device-health issues.</li></ul>
2026-10-23T00:00:00Z

Salesforce Administrator

San Bernardino, CA
remote
Temporary / Contract
65 - 70 USD / Hourly
We are looking for an Salesforce Administrator to support and enhance enterprise business systems for a contract assignment based in San Bernardino, California. This Contract position is ideal for someone who is detail oriented and can translate operational needs into effective platform solutions while maintaining reliable system performance. The role will focus on administration, configuration, and technical development across ERP and CRM environments, with close collaboration across business and technical teams. Responsibilities:• Administer ERP and CRM platforms to ensure stable daily operations, appropriate access, and dependable system functionality.• Gather business needs from stakeholders and turn them into clear documentation, including business requirement materials and functional recommendations.• Configure system features, workflows, and settings to align platform capabilities with organizational processes and user expectations.• Develop and maintain client-side scripts to improve usability, automate tasks, and support customized application behavior.• Create and support APIs and system integrations that enable secure and accurate data exchange between business applications.• Perform Salesforce development activities to extend platform functionality and address business-driven enhancement requests.• Manage configuration changes through controlled processes, including testing, documentation, and release coordination.• Troubleshoot application issues, identify root causes, and deliver timely resolutions to reduce disruption for end users.
2026-10-28T00:00:00Z

15 results for Systems Security Administrator in Ontario, CA