* Delivering a complete front-end application. * Ensuring high performance on mobile and desktop. * Design, build and maintain efficient, reusable, and reliable code. * Coordinating the workflow between the graphic designer, the HTML coder, and yourself.Cooperating with the back-end developer in the process of building the RESTful API. * Creating APIs in Node.js in collaboration with backend developers. * Communicating with external web services. * Ensure the best possible performance, quality, and responsiveness of applications.Keep abreast of the latest technology trends.