Web Platform QA Testing

I'm seeking an experienced QA tester to perform functional testing on my web platform. The testing should cover the following areas:

https://dev.treeing.app

Design doc:
https://treeing-app.notion.site/Treeing-Project-Handbook-1985968e288781ebaf17e3c63166c435?pvs=4

- User authentication
- Shopping cart functionality
- Payment processing

The platform must be tested on the following browsers:
- Chrome
- Safari
- Windows Edge
- Mobile Browsers iOS & Android

Ideal skills and experience:
- Proven experience in functional testing of web applications
- Familiarity with the specified browsers
- Strong attention to detail and ability to document issues clearly
- Prior experience with e-commerce platforms is a plus

Please provide examples of similar work done and any relevant certifications.