Top Senior Level IT Support & Helpdesk Jobs in Phoenix – Mesa – Scottsdale, AZ

Build and lead a centralized IT function across a holding company and portfolio. Run acquisition IT workstreams and create a Day 1-100 integration playbook. Select and operate identity and access systems, build joiner/mover/leaver processes, maintain living inventory of tools/accounts/licenses, manage MSP relationships and vendor contracts, and connect back-end systems to the cross-portfolio data platform while engaging business stakeholders.

Support DoD enterprise IT service delivery: implement security controls, troubleshoot applications, create silent install packages, manage physical and virtual workstations, handle Tier 3 support, coordinate RMF/A&A accreditation with ISSOs, and work on ITSM, endpoint management, imaging, and SELinux enforcement.

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.

Lead desktop/application integration and platform engineering initiatives: design processes, improve performance, mentor staff, manage complex operational projects, create workflows and policies, analyze system issues, and support enterprise endpoint lifecycle, packaging, deployment, and automation.

Manage and supervise remote helpdesk personnel supporting DAI financial/Oracle ERP users for DoD customers. Coordinate staffing, training, scheduling, and liaise with government leads to ensure effective support coverage and system integration.

Lead day-to-day support systems and workflows: manage ticketing, routing, queues, labels, escalations, and intake. Triage urgent issues, prioritize requests, drive technical/operational programs end-to-end, partner with engineering/data/IT, and use Cursor and AI-native workflows to reduce toil and improve system reliability.

Lead and mentor a POS support team to ensure installation, configuration, maintenance, and high performance of POS systems. Act as escalation point for technical issues, collaborate cross-functionally, manage vendor relationships, create training, monitor performance metrics, and implement system improvements.

Provide tier 1-2 IT support across hardware, software, SaaS apps, and remote connectivity; administer identity and access management; maintain device fleet via MDM; build automation for lifecycle workflows; support SOC 2/ISO/HIPAA evidence and access reviews; document workflows; partner with People, Security, and Engineering on cross-functional projects.

Provide advanced Tier 3 technical support for RPMS applications, systems, databases, and site-specific configurations. Troubleshoot, escalate, and resolve complex incidents; maintain knowledge base and support documentation; assist with software installation, upgrades, configuration, reporting, and user adoption/training. Track tickets through closure using government tools and comply with federal privacy and security requirements.

Provide 24x7 technical support for ClickHouse users and prospects via tickets, chat, Slack, and calls. Triage issues, run POCs, create documentation and knowledge-base content, collaborate with Engineering, Product, and GTM teams, mentor colleagues, and help improve support processes.