I spent two years at Quad Lock looking after the video and photo library every team relied on, from social through to the boardroom. Your position description honestly reads like the next size up of that work, and I would really love to help you get there.
I have handed this over once before. Building it is the easy half. Making sure it still works after you leave is the half most people skip.
Your position description already sets out a roadmap. I would deliver that rather than replace it, and the first thing I would ask for is a walk through it.
By changing nothing. First few weeks: understand the plan you already have, and watch how people really work. Then measure. Then change one thing and prove it before doing more.
Measured at the start so any improvement can be shown rather than claimed.
That it still works six months after the contract ends. Anything else is just activity.
This is genuinely the work I enjoy most, and doing it for a company whose trips I would actually want to go on is a rare combination. I would love to be part of it, and I am happy to go deeper on any of this.