Python web scrapping developer to maintain existing python code

We have some python code that works for our application where our website is scrapping real time other websites to find results. The main scenario is that it scraps the catalog of different stores in food delivery platforms and then checks the json and converts it to a standard json format that is common and is used to be imported in our application. Our application calls the python code and is using Java / Angular.

We are looking for a developer to fix bugs for this code and maintain this plus work long term with us to improve it, understand it well and incorporate new scrapping websites. Experience in Java / Angular is a big plus

We are open to do fixed price or pay by hour. It would be good if for fixed price the initial deliverables are done so that we understand the capabilities of the developer