Unless you were hired to create a UX team from scratch, chances are you’ll have to adapt to use whatever software your company is using: Axure, Adobe, Figma, Sketch and so on. The one skill you’ll have to develop is the willingness to put as many ideas as possible on paper, and leave behind the ones that don’t work.
I LOVE this so much. Over the last decade I’ve adapted to different teams and work styles, different software and flows, but the common thread through it all has been my UX sketching.