We have 4 years of working experience OpenCart theme, customization, custom extensions development, and version upgrade. Citytech migrates your lower version of the OpenCart store to the current OpenCart 3.x with complete attention and support. We migrate your data, SEO settings, and extensions so that you do not lose any valuable data during the upgrade process. With our managed upgrade service the entire process becomes smooth and seamless. 

We would like to highlight few features of an e-commerce website: b) Advance searching and sorting technique: Registered members can search the product by the search parameters such as c) Product Categorization: Products will be arranged into categories and sub-categories that show the listing of all included products with basic details such as product image (if applicable), title, brief description, key features, price, and product rating, and so on. d) Payment Gateway: We will integrate a secure payment gateway via Paypal, Google checkout, etc. e) We would provide book marking of various social networking sites like Facebook, Twitter, etc. on your website. This will be the social media marketing of the website and promotional campaign. f) Newsletter/ Email notification: Subscribed users will receive automated promotion email notifications from the admin. g) Shopping Cart: User-selected products are added to the cart via “Add to Cart”. Users can purchase products in the collection. Users can remove any product selected in the cart before checkout.

Please check my portfolio here https://mrbilal.net/

Thanks.