improve conversions and sales in my website

We are looking for experts in online marketing, ECommerce and sales. We have a website online which sales Orthotic insoles and we are looking for ideas to improves the conversions and ROI. We want to work with a firm that has proven experience with e commerce, funnel optimization and sales. In your bid, please write a few a ideas you have for us, which you think will help us improve our conversions. This will help us determine if your service is what we're looking for. Please only bid if you able to do both design and content optimization for the website (Native English speakers only).