Running a django website without models.py and views.py
He can build pure HTML/CSS/JS pages that you can use afterwards as your Django templates and extend as you wish. It depends of the complexity of your templates I guess.
I did develop most of the front end but I am thinking to hire a freelance frontend developer(HTML, CSS and JS) to refine the design and make the site look professional. I am not yet comfortable to share my code with him. 
Is there any way in which he can run the django app without having models.py & views.py and work on html, css and js files.
Any leads on this matter is appreciated.
Thanks