Top IT Support & Helpdesk Jobs in San Antonio, TX

Provide front-line phone and ticketed technical support for clients, log and manage tickets in ConnectWise, troubleshoot Windows/macOS and MS Office issues, escalate as needed, perform audits, occasional on-site customer visits, and maintain detailed documentation and customer communication.

Contract IT System Administrator to manage and harden multi-cloud (AWS/Azure) infrastructure and Microsoft 365 identity/collaboration stack, support endpoints and managed IT/security SaaS platforms, automate routine tasks with scripting, maintain documentation and compliance posture for Department of War mission spaces, and serve as hands-on technical escalation for operational issues.

Contract IT System Administrator to manage and harden multi-cloud (AWS/Azure) infrastructure and Microsoft 365/Entra ID, support endpoints and managed IT/security SaaS, automate admin tasks with scripting, maintain documentation, and help meet DoW security and compliance expectations.

Provide internal IT support and endpoint management for a fully remote workforce: provision and maintain macOS/Windows devices, enforce endpoint security, manage MDM/UEM and SaaS provisioning (Google Workspace, Slack, Atlassian), triage help desk tickets, maintain IT documentation, oversee vendor/licensing relationships, and partner on internal infrastructure and policy initiatives including AI tool governance.

Own and automate IT workflows and SaaS integrations (identity, collaboration, core business apps). Configure SSO and identity protocols, maintain DNS and email security, troubleshoot endpoints and apps, support SOC 2/SOX compliance, document standards, and partner cross-functionally to scale reliable, secure IT systems.

Lead Tier 3 technical and integrations support, build and manage senior SME teams, own enterprise escalation management, improve SLAs and diagnostics, partner with Engineering and Product to resolve root causes and drive operational efficiencies.

Provide expert technical support for commercial and industrial water treatment systems (UV, ion exchange, filtration, RO). Troubleshoot, manage warranty and logistics inquiries, coordinate field service and startups, interpret wiring diagrams/CAD, use Salesforce for service management, and provide on-call support. Travel ~20%.

Provide Level 2 technical support by administering Linux/Windows servers, virtualization and cloud platforms, managing databases and web servers, configuring hosting control panels (cPanel, Plesk, WHMCS), troubleshooting networking and performance issues, communicating with customers, and improving support processes.

Provide system administration for Windows-based application hosting: support IIS, monitor performance and availability, coordinate security patching, assist deployments, configuration management, and infrastructure modernization in FISMA-regulated federal environments.

Provide tiered inbound support across phone, email, and chat; troubleshoot Tenna software and hardware; manage HelpScout/JIRA tickets; escalate and collaborate with Engineering, Product, QA and Hardware to resolve issues and identify trends; assist Customer Success and ensure correct provisioning and documentation.