App maintanance (Flask Python and Vue.js)

Hi everyone! We have a started project written in Python flask (mongoDB noSQL database) on backend and vue.js on frontend. We need a software developer that have these skills to make some changes (on demand) for our pilot plan. Firstly we'd like to know how much is your hour value and how much hours do you can give us by month. So if you have any questions, please let us know. Fattorno team work.