The goal of the project was the development of a modern online store with the most comfortable and responsive interface, as well as integration with the existing in company document management system based on IBM Lotus. We had a task to implement the modular system, the components of which will be subsequently used to implement future online features (partner stores with the referral system, etc.). It was necessary to ensure cross-browser compatibility in the following browsers: Google Chrome, Mozilla Firefox, Safari, Internet Explorer 8+, and scalability of the project on both mobile devices and tablets. It also required CMS for content management in an online store.