MERN Stack

I am in need of an experienced MERN Stack developer to create an e-commerce web application with user authentication. Although I have a general idea of what I want, I would appreciate design assistance to make the website visually appealing. The main functionality of the website will be e-commerce, with the addition of user authentication. As such, I require a payment gateway integration and custom API integration. Ideal skills and experience for this job include proficiency in MERN Stack development, experience in e-commerce website development, and expertise in user authentication and payment gateway integrations.