Hello, ashwanikr
It seems you need a programmer ASAP and doesn't have time to search about Flutter developer.
I have just gone through the project description, and I can do a perfect Flutter mobile application with Google firebase for both platform android and IOS with perfect UI and clean code. you can check my portfolio, I made many Flutter mobile Applications based on the Firebase database. I can do this application easily. I would like to discuss more details about the project if this project e-commerce project or a traditional application?
I am sure that I can develop a masterpiece of Mobile application that will work on both platforms (IOS and Android).
Happy to start now.
Feel free to ask me if you have any questions.
Regards,
Abdalmohsen