For becoming a Django developer you first need to learn Django. I would suggest you should take up the following Django Training Course where you will be given everything you need in a proper organized way to learn Django.
There are some skills that you should have to become a Django Developer:-
You should have problem-solving skills.
Your aptitude skills should be great.
You need to be very creative.
Your coding skills should be great. Because you are going to work with the backend of the website that needs great logic to solve.
I am also mentioning a video tutorial here. It will make you understand the basic concepts of Django. Do watch: