Provide Tier 2 technical support and serve as escalation for Tier 1: troubleshoot hardware, software, networking, user accounts, Windows 11, Microsoft 365, VPN, and printers; perform onboarding/terminations and user training; use RMM for patching, security hardening, and deployments; support multi-site office setups and ISP provisioning; monitor refrigeration temperatures; comply with HIPAA and PCI; participate in incident response and on-call rotation.