IT Jobs in Fullerton, CA

Administer and monitor a multi-site routed network (SD-WAN, switching, routing, VoIP); troubleshoot escalated tickets; perform patching and vulnerability remediation; configure firewalls, VPNs and cloud connectivity; participate in network architecture and projects; provide after-hours rotational support and maintain documentation and security best practices.

Senior IT Systems Engineer responsible for designing, configuring, and troubleshooting hybrid on‑premises and cloud infrastructure. Lead infrastructure projects, manage VMware vSphere/ESXi, SANs, backups/DR, Office 365 and related services, implement Azure components, automate tasks, document procedures, remediate audit findings, and mentor/coordinate technical work across teams.

Provide end-to-end systems administration for on-prem and cloud environments: install/configure Windows/Linux servers, firewalls, networks, virtualization, storage, backups, and Java web applications; support customers via tickets and coordinate maintenance and upgrades.

Administer and maintain core insurance enterprise systems, manage change requests and vendor SLAs, support UAT and incident resolution, ensure data privacy compliance, and maintain operational and security documentation.

Provide on-site and remote advanced IT support for users and manufacturing operations, troubleshooting hardware, software, networks, OT/IoT devices, managing cybersecurity vulnerabilities, performing setups and inventory, coordinating vendors, and supporting employee onboarding and IT maintenance.

Provide onsite advanced technical support for Windows endpoints, servers, networks, OT and IoT devices at the Anaheim facility and remote global sites. Troubleshoot hardware/software, manage cybersecurity vulnerabilities, onboard new employees, maintain inventory, coordinate vendor repairs, install/configure software, and support manufacturing operations.

Perform requirements gathering, process analysis, solution design, and data analysis to improve business processes. Lead change management, user readiness, UAT/testing, training, and documentation for software implementations. Develop reports, process maps, SOPs, and enablement materials while supporting continuous improvement and cross-functional collaboration.

Lead implementations and integrations of WMS/TMS/FMS/OMS for 3PL customers, configure workflows, design and test ERP/EDI/API integrations, support onboarding and production, execute UAT and data validation, create documentation, and optimize processes.

The IT Project Manager will lead IT projects, manage budgets and schedules, ensure project scope meets business needs, and communicate with stakeholders.