Python Expert with Gatsby experience. (Firebase, Push Notification Plus

We are looking for a Python expert who can start working immediately (front end was done in Gatsby). The push notification was done on Firebase and it is working on local... but when we upload server, the current developer has some issue. Because he doesn't know the solution so we are going to continue with new developer who can fix this issue.... there will be many work including scrawling and so on. Immediate start is very important!