Google OAuth signup

I am looking for a freelancer who can implement Google OAuth signup for my web app using Node.js/Express. Although I do not have a Google API key yet, I know how to create one. The ideal freelancer should have experience with Node.js/Express and be able to create a secure and efficient authentication system using Google OAuth. Some key requirements for this project include:

- Implementation of Google OAuth signup for web app
- Experience with Node.js/Express framework
- Knowledge of web app development and security best practices