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8 results for Site Reliability Engineer in Ontario, CA

Security Engineer

Westwood, CA
remote
Permanent / Full Time
130000 - 160000 USD / Yearly
Security Engineer Company OverviewA leading advanced manufacturing and engineering organization is seeking a Security Engineer to help strengthen and scale its enterprise cybersecurity capabilities. The company supports innovative programs across highly regulated industries, delivering cutting-edge engineering, technology, and manufacturing solutions. With a strong commitment to operational excellence and risk management, the organization invests heavily in modern security technologies and proactive cyber defense strategies. Role SummaryThe Security Engineer will be responsible for designing, implementing, and continuously improving enterprise security controls that protect critical systems, data, and infrastructure. This role partners closely with IT, engineering, and business stakeholders to identify risks, remediate vulnerabilities, enhance monitoring capabilities, and ensure compliance with security standards. The ideal candidate brings deep expertise in the Microsoft security ecosystem and a proactive approach to reducing organizational risk through technology, automation, and continuous improvement. Key Responsibilities<ul><li>Design, implement, and manage enterprise security controls utilizing Microsoft security and compliance technologies.</li><li>Administer and optimize Microsoft Defender, Microsoft Purview, Microsoft Sentinel, and related security platforms.</li><li>Implement and enhance data protection, data loss prevention, information protection, and compliance controls.</li><li>Conduct vulnerability assessments, security reviews, and risk analyses to identify and remediate weaknesses.</li><li>Improve security monitoring, logging, and SIEM capabilities to strengthen detection, response, and visibility across the environment.</li><li>Develop, tune, and maintain security alerts, analytics, and detection content to reduce false positives and improve threat identification.</li><li>Lead investigations into security incidents, perform root cause analysis, and recommend containment and remediation strategies.</li><li>Collaborate with infrastructure, cloud, and application teams to integrate security best practices across systems and processes.</li><li>Support business continuity, disaster recovery, and incident response planning activities.</li><li>Prepare and maintain security documentation, including security plans, risk assessments, control documentation, and remediation plans.</li><li>Analyze emerging threats, vulnerabilities, and security trends to continuously improve the organization's cybersecurity posture.</li><li>Develop security metrics, reporting, and executive-level dashboards to communicate risk and performance.</li><li>Advocate for cybersecurity best practices and help foster a strong security-first culture throughout the organization.</li></ul>Additional Details<ul><li>Work model: Primarily remote with occasional in-person collaboration as needed</li><li>Flexible work schedule supporting distributed teams</li><li>Opportunity to work with modern cloud, security, and compliance technologies</li><li>Exposure to highly regulated environments and enterprise-scale cybersecurity initiatives</li><li>Collaborative environment focused on continuous improvement and security innovation</li></ul>
2026-08-11T00:00:00Z

Infrastructure Engineer

Los Angeles, CA
onsite
Permanent / Full Time
90000 - 110000 USD / Yearly
Job TitleSystems Engineer Company OverviewA well-established organization in the media and entertainment sector, based in Los Angeles, California, is dedicated to supporting creative professionals and advancing industry standards through technology and innovation. The organization operates a highly collaborative environment where technology plays a critical role in enabling seamless operations and high-quality member services. Role SummaryThis on-site Systems Engineer role in Los Angeles, California is responsible for supporting and optimizing enterprise infrastructure across hybrid environments. Working closely with senior technology leadership, this position plays a key role in maintaining system reliability, enhancing performance, and contributing to infrastructure initiatives, including major storage and systems projects. Key Responsibilities<ul><li>Support the design, implementation, and maintenance of infrastructure systems across on-premise and cloud environments</li><li>Administer and manage Microsoft 365 and cloud-based platforms, including identity and access management systems</li><li>Maintain backup, recovery, and disaster recovery processes to ensure business continuity</li><li>Monitor system performance, security, and reliability; recommend and implement improvements</li><li>Manage and support Windows and Linux servers, virtual machines, storage systems, and network components</li><li>Troubleshoot complex technical issues across systems, endpoints, and enterprise applications</li><li>Handle escalations from technical support teams and provide guidance and mentorship when needed</li><li>Maintain documentation and resolve incidents through a structured ticketing system</li><li>Contribute to infrastructure projects, including storage system migrations and system upgrades</li><li>Participate in after-hours support as needed to maintain operational continuity</li></ul>Compensation & Benefits<ul><li>$100,000 – $110,000 + discretionary bonus</li><li>Comprehensive medical, dental, and vision coverage</li><li>401(k) with employer match</li><li>Pension program in addition to retirement savings plan</li><li>Flexible spending accounts and life insurance</li><li>Paid time off and sick leave</li><li>Long-term disability coverage</li><li>Additional employee perks and wellness offerings</li></ul>Additional Details<ul><li>Work model: 100% on-site</li><li>Standard business hours with occasional after-hours support</li><li>Hands-on role with opportunities to contribute to key infrastructure initiatives</li></ul>
2026-07-29T00:00:00Z

Network Engineer

Los Angeles, CA
onsite
Temporary / Contract
21.85 - 25.3 USD / Hourly
We are looking for an experienced Network Engineer to support and optimize enterprise network operations in Los Angeles, California. This Long-term Contract position focuses on maintaining reliable connectivity, strengthening security, and improving performance across data center and infrastructure environments. The ideal candidate brings deep hands-on expertise with Cisco networking technologies, Palo Alto and Cisco ASA firewalls, and routing protocols such as BGP, along with exposure to VMware-based platforms and automation-driven operations. Responsibilities: • Design, configure, and maintain network infrastructure built on Cisco routing and switching technologies across enterprise and data center environments. • Administer and troubleshoot Palo Alto and Cisco ASA firewalls to ensure secure, resilient, and compliant network access. • Manage Border Gateway Protocol (BGP) configurations and routing policies to support stable external and internal connectivity. • Monitor network performance, investigate outages, and resolve complex connectivity issues to minimize service disruption. • Support VMware-based infrastructure by coordinating network connectivity for virtualized environments and related platform requirements. • Collaborate with infrastructure, operations, and DevOps teams to improve network reliability, scalability, and operational efficiency. • Implement automation and process improvements to streamline network administration and reduce repetitive manual tasks. • Maintain technical documentation for network topology, configurations, standards, and operational procedures. • Assist with data center network activities, including upgrades, maintenance windows, and infrastructure changes as needed.
2026-08-07T00:00:00Z

Network Engineer

Rosemead, CA
onsite
Permanent / Full Time
140000 - 160000 USD / Yearly
Job TitleSenior Network Engineer Company OverviewA leading organization in the consumer services and enterprise operations space, based in San Gabriel Valley, California, is focused on delivering reliable, scalable technology solutions across a large, distributed environment. The company emphasizes operational excellence, innovation, and strong infrastructure to support critical business functions. Its technology teams play a key role in ensuring seamless connectivity, performance, and security at scale. Role SummaryThe Senior Network Engineer will be responsible for designing, maintaining, and optimizing enterprise network infrastructure in San Gabriel Valley, California. This role serves as a technical lead across network operations, ensuring high availability, performance, and scalability while supporting large-scale business operations. The position also plays a critical role in disaster recovery planning, infrastructure modernization, and cross-functional collaboration with security and infrastructure teams. Key Responsibilities<ul><li>Design, implement, and maintain enterprise-scale network infrastructure across LAN, WAN, and wireless environments</li><li>Configure and support routers, switches, firewalls, and related networking equipment</li><li>Monitor network performance, troubleshoot issues, and implement improvements for stability and scalability</li><li>Lead disaster recovery initiatives, including planning, testing, patching, and ongoing maintenance</li><li>Partner with cross-functional teams to ensure secure and efficient network operations</li><li>Support cloud networking environments and hybrid infrastructure integrations</li><li>Perform capacity planning and recommend upgrades to meet business growth demands</li><li>Manage firmware updates, patches, and system upgrades to maintain performance and security</li><li>Collaborate with vendors and external partners to evaluate and implement network solutions</li><li>Lead or contribute to network-related projects from planning through implementation and support</li></ul>Compensation & Benefits<ul><li>$145,000 - $ 155,000 with discretionary bonus + stock</li><li>Performance-based bonus opportunities and equity participation</li><li>Comprehensive medical, dental, and vision coverage with strong employer contributions</li><li>Retirement plan with company match</li><li>Additional perks including employee discounts and wellness-focused benefits</li><li>Strong work-life balance and team-oriented culture</li></ul>Additional Details<ul><li>Hybrid work model with regular in-office collaboration (4 days per week)</li><li>Flexible start times within core working hours</li><li>Opportunity to work in a large-scale, enterprise environment with high visibility</li><li>Role includes both operational support and project-based work</li></ul>
2026-08-19T00:00:00Z

IT Support Engineer

Los Angeles, CA
onsite
Temporary / Contract
48 - 50 USD / Hourly
***email: valerie.montoya@rht (.com) for consideration*** Robert Half is currently assisting a client in search of an IT Support Engineer to support day-to-day enterprise IT operations in a fast-paced Microsoft-centric environment. Required Qualifications· 3+ years of experience supporting enterprise IT infrastructure and end users.· Strong Microsoft 365 administration experience.· Hands-on experience with Entra ID (Azure AD), Intune, and Windows Autopilot.· Experience managing user accounts, permissions, and identity/access management.· Strong troubleshooting skills across endpoint, application, and authentication issues.· Experience supporting SharePoint Online and Microsoft collaboration platforms.· Knowledge of endpoint management and device provisioning.· Excellent communication, organization, and problem-solving skills.
2026-08-11T00:00:00Z

Senior Systems Engineer

Santa Monica, CA
onsite
Permanent / Full Time
120000 - 130000 USD / Yearly
Senior Systems Engineer Company OverviewA leading organization in the media, entertainment, and creative services industry is seeking a Senior Systems Engineer to join its Information Technology team in Los Angeles, CA. This company supports a dynamic, fast-paced environment and is investing heavily in infrastructure modernization, cybersecurity, endpoint management, and cloud technologies. This is an opportunity to work across a broad range of enterprise systems while helping shape long-term technology strategy and operational excellence. Role SummaryThe Senior Systems Engineer will serve as a key technical resource responsible for enterprise infrastructure, cybersecurity, endpoint management, and cloud operations. This role combines hands-on administration with strategic initiatives focused on infrastructure modernization, security enhancement, operational resiliency, and cloud transformation. The ideal candidate is a well-rounded systems engineer who enjoys solving complex technical challenges while driving continuous improvement across the IT environment. Key Responsibilities<ul><li>Administer and maintain enterprise server, virtualization, and infrastructure environments.</li><li>Support Windows and Linux server platforms, ensuring stability, performance, and security.</li><li>Manage backup, recovery, and disaster recovery solutions to support business continuity.</li><li>Oversee enterprise storage platforms and infrastructure lifecycle management initiatives.</li><li>Lead and support cybersecurity initiatives, vulnerability remediation efforts, and incident response activities.</li><li>Administer identity, access management, endpoint compliance, and device management platforms.</li><li>Support cloud infrastructure and participate in modernization efforts across public and hybrid cloud environments.</li><li>Implement automation, operational efficiencies, and infrastructure best practices.</li><li>Maintain integrations between enterprise applications, collaboration platforms, and business systems.</li><li>Develop and maintain technical documentation, procedures, and operational standards.</li></ul>Additional Details<ul><li>Hybrid work environment</li><li>Full-time, exempt position</li><li>Opportunity to contribute to major infrastructure modernization and security initiatives</li><li>Collaborative environment with strong executive support for technology investments</li><li>Long-term career growth potential within a technology-driven organization</li></ul>
2026-08-12T00:00:00Z

M365 Systems Engineer

Encino, CA
onsite
Permanent / Full Time
110000 - 130000 USD / Yearly
Microsoft 365 Systems Engineer Company OverviewA well-established organization in the professional services sector is seeking a Microsoft 365 Systems Engineer to join its internal technology team in Los Angeles, California. The company supports a dynamic, multi-office environment and is committed to leveraging modern technology, cybersecurity best practices, and cloud-based solutions to drive operational excellence. This role offers the opportunity to make a meaningful impact by enhancing collaboration, security, and productivity across the organization. Role SummaryThe Microsoft 365 Systems Engineer will be responsible for administering, securing, and continuously improving the organization's Microsoft 365 ecosystem while supporting broader infrastructure and endpoint technologies. This hands-on position is ideal for a security-focused systems professional who enjoys solving complex technical challenges, delivering automation solutions, supporting end users, and leading technology initiatives. Based in the Los Angeles, California area, this role combines operational support, systems engineering, security governance, and project execution. Key Responsibilities<ul><li>Administer, maintain, and optimize Microsoft 365 services including Entra ID, Exchange Online, SharePoint, OneDrive, Teams, Intune, Defender, Purview, and related cloud technologies</li><li>Manage user identities, access controls, group policies, role-based permissions, multifactor authentication, and conditional access configurations</li><li>Support governance and administration of AI-enabled workplace technologies while ensuring appropriate security and data protection controls</li><li>Oversee endpoint management activities, including device enrollment, application deployment, compliance policies, security baselines, and lifecycle management</li><li>Implement, monitor, and enhance cybersecurity controls across cloud and endpoint environments</li><li>Maintain data protection, retention, auditing, information governance, and compliance-related configurations</li><li>Support patch management, vulnerability remediation, endpoint hardening, and secure configuration standards</li><li>Troubleshoot and administer Windows, macOS, iOS, Android, networking components, and business-critical SaaS platforms</li><li>Develop and maintain PowerShell scripts and automation workflows to improve operational efficiency and reduce manual effort</li><li>Create technical documentation, support procedures, knowledge base content, and end-user training materials</li></ul>Compensation & Benefits<ul><li>$100,000-$120,000</li><li>Comprehensive benefits package including medical, dental, and vision coverage</li><li>Retirement savings plan with employer matching contributions</li><li>Professional development and certification support opportunities</li></ul>Additional Details<ul><li>Onsite with remote flexibility on an ad-hoc need basis</li><li>Participation in after-hours maintenance, upgrades, and incident response activities may be required</li><li>Up to 20% regional travel may be required</li><li>Opportunity to contribute ideas, influence technology strategy, and help shape future platform decisions in collaborative environment</li></ul>
2026-07-22T00:00:00Z

MES Systems Engineer

Torrance, CA
onsite
Temporary / Contract
59.375 - 68.75 USD / Hourly
We are looking for a MES Systems Engineer / Manufacturing Execution System Systems Engineer to join a collaborative manufacturing environment in Torrance, California. This Long-term Contract position will focus on improving manufacturing system performance, supporting application enhancements, and helping teams use system tools effectively across production and engineering functions. The role works closely with partners in production, design engineering, quality, and supply chain to strengthen data accuracy, streamline processes, and support reliable day-to-day operations. Responsibilities:• Partner with cross-functional stakeholders to maintain accurate system records and ensure manufacturing data is configured correctly for operational use.• Assist with application enhancements and tailored system functionality that align with production and engineering requirements.• Support connections between manufacturing platforms and related business systems, including enterprise and product lifecycle tools.• Create and organize user guidance and training materials to improve adoption among engineering and manufacturing teams.• Investigate system issues, resolve technical problems efficiently, and minimize disruption to manufacturing activities.• Coordinate software testing, validation, and rollout activities to confirm new functions perform as expected before release.• Contribute to structured change and release control practices for the manufacturing application and its connected systems.• Identify system gaps and recommend practical solutions that improve usability, reliability, and process efficiency.• Provide additional support for manufacturing process development and other advanced manufacturing initiatives as needed.
2026-08-19T00:00:00Z