Google OAuth Integration & Security Implementation

I need a seamless integration of Google OAuth into my Custom HTML web portal. This project will include: 1. Google OAuth Setup - Create a new project in Google Cloud Console. - Enable OAuth consent screen and set redirect URI to my web portal. - Acquire Client ID and Client Secret. 2. Backend Development (PHP & MySQL) - Utilize Google’s OAuth 2.0 API for user authentication. - Securely store captured user’s email and full name in MySQL database. 3. Frontend Development (JavaScript & HTML) - Implement a standard Google Sign-In button. - Ensure a clean UI for user-friendly experience. 4. Security Measures - Implement HTTPS and validate OAuth tokens. - Protect the web portal against CSRF and XSS attacks. In addition to the above, the implemented system should also capture and securely store user profile pictures. Candidates for this project should have extensive experience with PHP, MySQL, JavaScript, HTML, and implementing OAuth2.0. Knowledge of security best practices is crucial. Please provide examples of similar projects you have completed.