E-commerce Site Usability Testing

I need an experienced website tester to evaluate the usability and user experience of my e-commerce site. Tests should be conducted on desktop, tablet, and mobile devices.

Key Requirements:
- Comprehensive usability testing across all devices
- Detailed feedback on user experience
- Identify any potential navigation issues or barriers

Ideal Skills and Experience:
- Background in UX/UI design
- Experience with e-commerce platforms
- Strong analytical and reporting skills

Please provide examples of previous work.