However, I can provide you with a brief overview of some of the popular E-commerce platforms that you can explore to gain expertise in:
Shopify - A popular E-commerce platform for online stores and retail point-of-sale systems. It is known for its ease of use and is an excellent platform for small businesses.
Magento - An open-source E-commerce platform that provides flexibility and scalability. It is a popular choice for medium to large businesses.
WooCommerce - A free WordPress plugin that allows users to turn their WordPress website into an E-commerce store. It is a great choice for small businesses that already have a WordPress website.
BigCommerce - A cloud-based E-commerce platform that is user-friendly and provides advanced features for scalability and customization.
PrestaShop - An open-source E-commerce platform that provides a wide range of features and customization options. It is a great choice for small to medium-sized businesses.
OpenCart - An open-source E-commerce platform that provides ease of use and scalability. It is a great choice for small businesses.
These are just a few examples of popular E-commerce platforms, and there are many more available in the market. To become an expert in a particular E-commerce platform, you need to explore it in detail, understand its features, and keep up with the latest updates and developments.