Dynamic Website with PayPal Integration

I am looking for a freelancer who can build a dynamic website for me. The site needs to have a few key features:

- A user registration and login system
- An integrated PayPal payments gateway
- An email notification system

The email notification system will need to send out alerts to users at designated points in their interaction with the site.

The ideal candidate for this project would have a strong background in full-stack web development, with specific experience in creating secure user authentication systems and integrating payment gateways. Proficiency in setting up reliable email notification systems is also a plus. Please provide examples of similar projects you've completed.