Hello Zooch!
I work full time for Esoteric Software but I happily take side gigs if I can do them in the evenings or over the weekend.
I'm strongest in setting up and organizing projects for Spine, as well as creating flexible rigs. And I can, of course, animate the character too or prepare the ground to let you take over after the rig is done. (both options are perfectly fine with me!)
My hourly rate is 40$/h for rigging/animating and I can roughly estimate 15 hours to rig your character with one skin in all directions.
In case you're interested, my mail is erikari (at) hotmail (dot) it
Regarding the Global Game Jam, that's amazing! Happy memories accompany it and I participated many times in Milan! I also participated to the Nordic Game Jam which is a sister event afaik. (but sadly had a bit of a bad experience with the theme being secretly announced before the start of the even as the wifi password, some people starting to work, impossible to follow the talks without anxiety of losing time, and overall not a great organization the year I've been there) I still love the GGJ with passion and I'm thinking of joining one at a different venue perhaps! here's my profile: https://globalgamejam.org/users/erikari
Cheers!
Erika