Customize and Develop an Existing E-commerce Website

We are looking for a skilled developer who can customize and update our existing e-commerce website to improve user experience and increase sales. The website currently uses a mix of HTML, CSS, and JavaScript for its front-end and PHP for its back-end. We require modifications to the product pages, including adding new product features and optimizing product images. Additionally, we need improvements to the checkout process to reduce cart abandonment rates. The ideal candidate will have experience with e-commerce website development, PHP, and JavaScript.