Encrypting traffic between Nginx and App Server backend (via FastCGI)

[Some Developer]

I was wondering if it was possible to encrypt traffic between an Nginx 
front end and an app server back end? I have a Django application 
running and can have the traffic between the Django app and the database 
encrypted using SSL and can have traffic from the internet at large and 
Nginx encrypted also using SSL but I need to have the traffic between 
the Nginx server and the Django app server encrypted as well. Is there a 
method to accomplish this?

Thank you for any help.