Google OAuth Integration for User Signup

I need an experienced web developer to integrate Google OAuth for user signup on my live web portal. Key Requirements: - Implement Google OAuth for seamless user signup - Capture user's email address and full name during signup - Ensure the integration is secure, efficient and user-friendly Ideal Skills: - Extensive experience with OAuth implementation - Proficiency in web development - Strong understanding of security protocols - Excellent problem-solving skills Please note, the integration needs to be compatible with the existing functionalities of the web portal.