Sr. Systems Administrator

The Senior Systems Administrator will manage and support the organization’s on‑prem infrastructure, including servers, storage, virtualization, and backup systems. This individual will serve as a Senior escalation point for complex issues, contribute to operational stability, and lead or support infrastructure projects.
Key Responsibilities
-Administer and maintain Windows Server environments (2012–2022).
-Manage VMware virtualization across ~800 virtual servers and ~1,000 virtual desktops.
-Oversee enterprise storage systems (Pure Storage) and backup environments supporting ~1 PB of data.
-Troubleshoot and resolve Tier III escalations, including application slowness, system outages, and storage performance issues.
-Collaborate with network, telephony, application analysts, and end users—including physicians and clinical staff.
-Participate in infrastructure projects (30–40% of workload).
-Provide on‑call support one week per month as part of a rotating schedule...