Django experts

I am looking for Django experts to help me improve an existing Django application. Website is in pure Django + bootstrap. Django forms are used everywhere, no React or Angular for now. Need someone who has significant experience in Django, is punctual and reliable for long term support.

I am fun to work with, easy to go with in general.

Please include the answer to the following question on top of your cover letter so that I know you read it.
What is a Django serializer?