Looking for RoR developer to implement an OmniAuth API

I have an opportunity for a RoR dev - the task is to add a "sign in with edmodo" button to an existing app. This is the API - https://developers.edmodo.com/edmodo-connect/docs/. The website that you'd add it to has existing paid subscribers, so we'd only allow paid subscribers to be able to sign-in with Edmodo. Therefore their Edmodo email would have to be the same as their email subscription in order to sign in.

If you're interested please email me here: venuezzdev@gmail.com

Thanks!