Flutter App for Google Sheets Management

I'm looking to develop a Flutter application that interacts with a Google Sheet. The application will handle mixed data (text and numbers) and allow users to add, edit, and delete entries in the Sheet.

Key Features:
- User authentication via email and password
- Full Google Sheets CRUD (Create, Read, Update, Delete) capabilities

Ideal Skills:
- Proficient in Flutter development
- Experience integrating applications with Google Sheets
- Knowledge of implementing user authentication systems
- Strong understanding of managing mixed data types