Enhance Flask Authentication & Database -- 2

I am looking for a skilled Python developer to enhance certain aspects of my Flask application. Specifically, I need improvements in the user authentication system, including adding two-factor authentication and enhancing password security. Additionally, I want to optimize the current SQL database integration for better performance and reliability. Ideal skills include expertise in Flask, Python, authentication mechanisms like OAuth and two-factor systems, as well as strong proficiency in SQL database management and integration.

We have a few app modules concurrently in development and have run into a few areas that our existing team haven’t got around to fixing.

These include;
1) Implementing 2FA into an existing login route
2) Another is replicating the login route from one module onto another
3) Adding a quality checking sampling function on to a module
4) Merging the modules into one consolidated backend
5) Migrating SQLite backend to Postgres