In order to find the best ecommerce developer or the best ecommerce development company you have to first figure out a few details. You need to be clear on your requirements, have set goals you want to achieve, know which features you must have and a budget you can use for the work. After you know all these things, you can start searching for potential developers to work with. During your search, you should check their portfolio - have they worked on such projects before, what do their clients say about them and what kind of development can they do. Once you find several people or a company that have all the technical skills you require, you can start interviewing them until you find the one you think you will enjoy collaborating with the most.