Is it possible to have mulitple people working on a project?

Me and some friends are going to make a game and were wondering if we can all work on the same project with different devices simultaneously. Can I be working on a scene and someone else working on the same scene at the same time? If that's not possible can we all work in the same project even if it's not on the same scene? Like can we all have all of our scenes into one project by importing them or something without messing up the project that's already on one device? Thank you for your help and I will be as clear as possible if you don't understand.