[ Paid ] Custom Login Handler

Hello,

We are looking for a Custom Login Handler (OAuth) that merges accounts & with a bunch of extra API calls that save information into the user profile.
This is gaming related, so we're talking about: team, character, points, rank, et cetera, information.
Documentation by the game developers is available, we just lack API experience to make it all come together.

For more information & budget, please send me a private message.