Well, i cant speak for the entire team, but I started around 3-4 years ago with simple projects, mostly on paper though, not programmed. This was my first actual Game Jam :D What about you? :O
I’d been trying to make mini-games for ages without much luck, but I really got into it four years ago with non-coding software. Then, two years back, I jumped into coding! How was your first jam so far?