Top IT Support & Helpdesk Jobs in St. Louis, MO

Manage, design, install, support, and maintain VMware virtual environments and virtual-based systems. Administer Red Hat Linux and Windows Server OS, support email systems (MS Exchange/O365 preferred), troubleshoot issues, lead tasks, and communicate effectively to manage multiple priorities.

Serve as Tier II escalation for complex IT issues across Microsoft 365 and collaboration tools. Administer identity/access (Entra ID, SSO, MFA), manage SaaS permissions, oversee device imaging, shipping, and inventory, support conference AV and VPN access, respond to security alerts, maintain Confluence knowledge base, partner with vendors, and improve support workflows for ~260–400 users.

Manage and secure the Microsoft 365 tenant, including Entra ID/AD, Exchange, SharePoint, Teams, OneDrive and Power Platform. Perform tenant and data migrations, implement SSO, create documentation and training, support operations and security initiatives, and provide escalation support while evaluating scalability and adoption of new M365 capabilities.

Lead day-to-day system administration for cloud and on-prem systems: install, configure, maintain, optimize, and secure servers and networks. Perform capacity and performance analysis, automate admin tasks, train staff, manage application networking and load balancing, and conduct vulnerability management while supporting CUI and government security requirements in a fully remote Agile environment.

Provide advanced technical support for B2B integration products (Sterling B2B Integrator/File Gateway), diagnose and resolve complex enterprise issues across networks, OS, databases, virtualization and cloud; manage cases, document knowledge base articles, perform remote troubleshooting and on-call/weekend coverage, and apply AI tools to accelerate analysis and remediation.

Provide advanced, remote application support for CorVel proprietary systems: troubleshoot ServiceNow tickets, run and optimize SQL queries, perform post-release testing, create documentation, collaborate with stakeholders, and improve support using AI tools.

Lead and develop an IT team to run secure, scalable infrastructure and support services. Oversee daily operations, project delivery, vendor management, compliance with security/regulatory frameworks, performance metrics, budgeting, and continuous improvement while partnering with business leaders.

Provide hands-on operational support and maintenance for on-prem Blue Prism environments, troubleshoot across application, database, and OS layers, coordinate SQL Server and failover configurations, maintain Dynatrace monitoring, execute upgrades, and act as trusted client technical contact.

Remote IT Manager responsible for analyzing, upgrading, and administering IT systems (networks, servers, email, backups), evaluating vendors and technologies, managing projects, tracking inventory, training staff, and providing technical support to improve operational efficiency.

Provide hands-on IT support for manufacturing and corporate environments: troubleshoot production/test stations, maintain Windows and Linux systems, manage virtualization (VMware/Hyper-V/Azure), networks, monitoring, backups, and automation (PowerShell/Bash). Create documentation and training, work with DB/network/process-control teams, and improve processes through data-driven analysis and quality/safety practices.