Loogking for senior Django Developer for long-term

We are building an app using React Native and Django.
Right now i am looking for Djanog Expert who can build backend of our app.

Description:
Login / Signup
===== Signup ====
First Name
Last Name
Phone number
Age (Calendar dropdown)
Email
Password
Confirm password
Sign Up (Button)


==== Login =====
Email (Input)
Password (Input)
Sign In (Button)
Forgot password (Link)
Sign up (Button)
Continue as a guest (Link)
Social login using
Google
Apple
Facebook"

you have to build the login/signup api with django and implement social login.
How long will it take do you think?
Please provide me your estimate / budget and sample projects that you have done before.


Are you able to work 40 hours / week in Central Time?
When are you able to start?
What's your experience in Django?