Top IT Support & Helpdesk Jobs in San Diego, CA

Provide timely technical support to end users across multi-site industrial operations. Diagnose and resolve hardware, software, and access issues, document tickets, follow ITSM processes, support onboarding, maintain asset inventory, enforce security policies, perform routine updates and maintenance, and coordinate vendor escalation and cross-site support including occasional travel and after-hours coverage.

Administer and support Microsoft 365, Azure/Entra ID, and other SaaS platforms; manage user accounts, endpoints (Intune), and provide Tier 2/3 support. Partner with business and scientific teams, assist onboarding/offboarding, monitor performance, support SaaS implementations, contribute to security and validation, maintain documentation, and participate in occasional after-hours support.

Provide on-site Tier 2 desktop support in San Diego: install, configure, and troubleshoot desktops, laptops, phones, email, and video conferencing; deploy software updates, create/maintain PC images and documentation; coordinate with other IT teams to resolve helpdesk requests.

Lead enterprise IT operations, engineering, and cybersecurity across distributed CONUS/OCONUS LVC environments. Ensure system availability, RMF/STIG compliance, ITSM/ITIL practices, incident/change management, staff leadership, ATO support, and alignment with Navy mission objectives.

Owner of company internal IT: provide employee IT support, manage devices/accounts and MDM, administer Google Workspace/M365 and identity, maintain office networks and AV, enforce security controls, build onboarding/offboarding and IT processes, document systems, and develop the IT roadmap and budget while supporting engineering and manufacturing environments.

Provide on-site IT support at ResMed San Diego HQ and global remote support via phone and ticketing. Manage user access (AD, Entra ID, Okta), troubleshoot Windows/macOS/mobile devices, Office 365, AV and conference room systems, deploy hardware, use Jira Service Management, participate in on-call rotation, and collaborate on projects.

Provide Tier 2/3 technical support for Dynamics 365 Finance & Operations across cloud and hybrid ERP environments. Troubleshoot complex, high-impact cases using Visual Studio, Azure telemetry, SQL and AI tooling; collaborate with product engineering, mentor peers, create knowledge content, drive process and product improvements, and ensure secure, compliant handling of customer data.

Provide technical support for developer customers, resolve inquiries, create and maintain tutorials and content to improve self-sufficiency, minimize engineering interrupts, and collaborate with cross-functional teams on support strategies.

Provide frontline and advanced application support for radiology imaging workflows: incident triage, user provisioning, configuration changes, DICOM troubleshooting, monitoring interfaces, coordinating with networks/storage/vendors, maintaining SOPs and knowledge base, delivering end‑user training and on‑call doctor support to meet SLAs.

Administer and configure IndySoft across a national lab network: manage users, templates, equipment profiles, data migrations, integrations (APIs/NetSuite/Salesforce), run SQL queries for data quality, provide user support and documentation, and recommend improvements and automations.