Remote flutter project upgrade

we are looking for flutter expert with remote access via team viewer or anydesk to update / implement some new apis ..

1. postcode + cityname + min delievery order. 1a- before place an order pop up window for enter postcode or cityname

1b. when city or postcode does not exist it display message.

1c. all that need to save from admin( restaurant setting ) webpanel..

1c example Default Delivery Charge -- under there we enable that postcode-price db-table

1d. it check the timing for restaurant ..when it close it say you can place preorder this is like on for week Opening Time 11:00 Closing Time 14:30 some restaurant have double Opening Time 17:00 Closing Time 22:00 maybe on sunday they close this way incase user try to order on monday at 10:00 am that time restaurant is close it show user that would you like to preorder.. 2nd : when on some user try on sunday it today we are closed.would you like to preorder for other day. also display timing on homepage- and with delivery timing. 1e. show timing for delivery given in setting UI that is for postcode side