Chat application e-commerce restuarant web app

I am looking for a developer to build a web-based chat application for my e-commerce restaurant web app. The chat application should have the following features:

Platform: Web-based

Payment Gateway: PayPal

Integration with other services: No

Ideal Skills and Experience:
- Experience in building web-based chat applications
- Proficiency in HTML, CSS, and JavaScript
- Familiarity with PayPal integration
- Strong understanding of e-commerce and restaurant web app development

Please provide examples of previous projects and relevant experience in your proposal.