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

Serve as final escalation for complex, visible client technical issues; provide advanced troubleshooting for data-driven applications, databases, APIs, Java, Linux, and networking. Liaise with customers and internal teams during implementations, mentor junior staff, maintain shared environments, create knowledge-base documentation, and participate in on-call rotation.

Supports and enhances the organization’s SharePoint Online intranet and Microsoft 365 digital workplace. Responsibilities include SharePoint administration, content management, user support, troubleshooting, governance, permissions reviews, quality assurance, training, documentation, stakeholder engagement, and adoption initiatives. The specialist also supports migrations, identifies usability improvements, and stays current with Power Platform and AI-enabled Microsoft technologies.

Provides advanced helpdesk support for court case management and jury software. Responsibilities include expert triage, ticket prioritization and resolution, application troubleshooting, configuration changes, outage communications, knowledge-base development, data analysis, scripting assistance, and coordination with application and hosting operations teams.

Administer and support PeopleSoft environments including installation, configuration, upgrades/patching, performance tuning, integrations (Integration Broker, IAM/MFA), ElasticSearch implementation, environment builds, monitoring, troubleshooting, and cross-team coordination to maintain high-availability HRMS systems.

Lead technical escalations from intake to validated resolution: run diagnostics across logs, SQL, APIs, cloud and code; classify root causes; review AI-generated fixes; coordinate engineering responses to meet SLAs; improve runbooks, tooling, and prevention to reduce repeat incidents.

Provide application support for MIP Accounting to clerks, accountants, CFOs and HR/payroll staff via ticketing, phone, web and chat. Troubleshoot errors, replicate issues, provide how-to guidance, create knowledge base content, and escalate or collaborate on resolutions.

Lead and scale Application Support for a B2B SaaS digital banking platform. Own strategy, KPIs, incident management, cross-functional governance, manager development, tooling (ServiceNow/Jira), and client experience to improve stability, reduce incidents, and drive retention.

Serve as primary technical contact for carrier customers, diagnosing and resolving web application, API, and data ingestion issues. Reproduce problems, run SQL queries, provide workarounds, deliver RCA documentation, maintain KB articles and runbooks, participate in on-call rotation, and collaborate with Engineering, QA, and Operations to surface systemic issues.

Provides first-level support for banking software through phone, email, web, and remote tools. Troubleshoots issues, configures and trains clients, documents solutions, maintains support records, and coordinates with QA, Development, and IT. The role includes customer-site installations, upgrades, occasional overnight travel, after-hours support rotation, documentation updates, and client communication. Strong customer service, technical communication, organization, networking knowledge, and familiarity with Windows are required.

Lead and measure global technical support for ProcessUnity's TPRM platforms. Manage L2 support team, own escalations for enterprise accounts, partner with engineering on triage, run AI-driven support/knowledge programs, improve processes and SLAs, and report support health to leadership.