While at AbeBooks for 6 years I was primarily responsible for all website and product design. This involved using website metrics and user testing to design all user interface and user experience. Here are a few examples:
Below is an example of a product detail page featuring several improvement including larger product image, improved display of product details as well as links to similar items, social sharing links and larger basket button.
This page below is provided to customers to track their purchases. It was improved by combining purchase history details on one page in a clean easy to read interface on brand with the rest of the website.
The search results page below was incrementally improved to allow better filtering, cleaner display of product details and a clear representation of costs. These changes resulted in a marked increase in filter use and ultimately better buyer conversion.