Put side projects up on Github or another platform. Even if they seem basic, some code to review is better than no code.
As a developer, you should be able to configure a personal site that comes up first when a company Googles your name.
There are annual Django conferences in the US, Europe, Australia, and now Africa. There are also local Django meetups in dozens of major cities worldwide.
All open-source projects rely on contributors, including Django and Django REST Framework.
The technical interviewing process is grueling and demoralizing for almost everyone. Try not to let “imposter syndrome” overwhelm you in the process.