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

Administers Oracle and multiple relational and NoSQL databases across Linux and AWS environments. Performs database installation, backups, recovery, cloning, performance optimization, monitoring, patching, and troubleshooting. Supports application, hardware, software, network, and service-ticket issues; maintains accounts and ACLs; conducts audits; and ensures compliance and data recoverability. Provides customer support, technical expertise, and after-hours on-call support in an onsite, high-security environment.

Provides first-line IT helpdesk support through phone, email, and chat. Diagnoses hardware and software issues, performs account resets and troubleshooting, documents incidents in ServiceNow, seeks first-call resolution, and follows up with users. The role requires excellent customer service, technical problem-solving, Microsoft Office proficiency, and an active TS/SCI clearance. Work is performed on an early Sunday–Wednesday shift in St. Louis, Missouri.

Provides first-line remote support for print and office equipment service calls. Installs PC and Mac print drivers, resolves non-hardware printing issues, answers client equipment questions, and trains end users on proper machine operation. Requires basic networking and PC knowledge, strong communication and customer service skills, accuracy, self-direction, analytical problem-solving, and the ability to meet deadlines.

Maintains and deploys desktop, laptop, and mobile hardware, operating systems, configurations, patches, and applications. Tests hardware and updates, troubleshoots operating system and application issues, supports deployment teams, coordinates vendor escalations, identifies automation opportunities, and creates technical documentation. The role requires strong endpoint support experience across Windows and Mac environments, occasional night or weekend work, and up to 10% overnight travel.

Provides technical support for end-user computers, applications, phones, printers, network connectivity, access systems, and property technology. Troubleshoots hardware and software, manages inventory, user access, phone systems, remote vendor support, and network wiring. Maintains compliance and delivers customer service to guests, staff, and colleagues. Requires Microsoft, Windows, networking, Active Directory, hardware, software, and imaging experience.

Provides 24/7 monitoring and first-level technical support for internal and external customers. Receives calls and alerts, troubleshoots incidents, creates and documents tickets, escalates critical issues, engages technical resources, and supports incident management. Requires strong customer service, communication, organization, reliability, and basic systems administration skills. The role includes shift, weekend, and holiday coverage in an office or hybrid environment.

Supports the integration and enhancement of custom applications and vendor systems. Gathers requirements, develops functional designs, assists with solution implementation, performs testing, documents workflows, troubleshoots production issues, and supports Agile delivery. The role collaborates with stakeholders, developers, architects, leadership, and business teams while contributing to process improvements and mentoring associate analysts.

Administer, design, install, configure, and optimize IMS Full Function, HALDB and IMS Fastpath databases in a z/OS Parallel Sysplex. Perform performance tuning, monitoring, backup/recovery, partition management, PSB/DBD/ACB generation, and DBRC operations. Provide expert IMS support, root cause analysis, vendor coordination, application team collaboration, and participate in a 24/7 on-call rotation. Ensure high availability and compliance with data governance.

Provides bilingual English and Spanish Tier 1 helpdesk support by phone, email, and cases. Handles account and billing questions, device activation, system education, troubleshooting, cancellations, retention, and first-contact resolution. Documents customer interactions, de-escalates concerns, supports translation projects, and maintains strong customer relationships. The role requires remote-work readiness, secure home workspace, reliable internet, and familiarity with customer support technologies.

Administer and maintain IT systems, networks, servers, endpoints, and cloud environments. Troubleshoot user and infrastructure issues, manage patches, harden systems, monitor security alerts, and support vulnerability remediation. Assist with ISO 27001 compliance, audits, documentation, onboarding, and offboarding. Serve as an escalation point and technical mentor for junior staff while recommending improvements to IT reliability, security, and operational readiness.