Hi, I'm a game dev from the US who loves level design. I have experience building 3D games in Unity and Unreal, and feel very comfortable navigating 3D workspaces. I've played around with CK briefly before, though nothing serious. Given my knowledge of the 3D editors and game development pipelines, I am confident that I can be useful to the team in building and designing levels. I have a lot of experience learning various 3D software independently, so learning should come quickly - I'm working on it already.
I am willing to design and develop a requested sample, but I'd like to know the kinds of content you are looking for.
I also have some experience writing for games. My latest project Uproot is entirely centered around writing, though it's all a work in progress.
You can see my work at http://domportera.wordpress.com
I've been lurking on this project for years, so the prospect of working on it in a serious capacity excites me. Thanks for your consideration!