Senior Systems Administrator

Description
Robert Half is partnering with our client in the Janesville area to hire an experienced Senior Systems Administrator to support and enhance a complex enterprise IT infrastructure. This is a hands-on senior-level role responsible for maintaining highly available server, cloud, storage, and network environments while serving as the primary escalation point for complex infrastructure issues. The ideal candidate brings deep Microsoft infrastructure expertise, strong networking experience, and a proactive approach to system reliability, security, and continuous improvement.


Responsibilities

+ Administer, maintain, and optimize enterprise Windows Server environments, ensuring high availability, performance, and security.

+ Manage Hyper-V virtualization infrastructure and support server lifecycle activities including deployments, upgrades, patching, and performance tuning.

+ Administer Microsoft 365 services including Exchange Online, ...