Flutter chating module with SQL database and Dotnet core api

I am looking for a skilled developer to create a Flutter chatting module with the following requirements:

Features:
- Text chat with file sharing capability

Chat History:
- The chat history should be stored on an MSSQL database

Security:
- Basic encryption is required for the chat data

Ideal Skills and Experience:
- Experience with Flutter development
- Proficiency in MSSQL database management
- Knowledge of encryption techniques for securing chat data