System Engineer III First Interstate BancSystem IncSystem Engineer IIISioux Falls, SDThe System Engineer III is responsible for the design, installation, administration, and optimization of the company's storage, computer environment, and servers-including Windows, Linux/Unix, Citrix, hypervisors, and related components-to ensure high performance of various business applications. Meets end-user needs by ensuring uptime, performance, resource availability, and network security within established budgets and operational guidelines.