I do sys admin/engineering work in a Windows environment. PowerShell is what got me this job, and together with my programming experience allows me to keep up with my seniors who have been in their positions for a decade or more.

It also helps us all make a good team. They have the knowledge and experience advantage (though I'm catching up), I have the skills to figure out how to implement/automate the plans in a way that doesn't involve days of mind numbing manual actions.