Build me the frontend part for a website

Hi, I am a Java Full Stack Developer. I was working on a project for a client but due to deadline issues. I am seeking some help in the front end. I have already designed a few pages in ReactJS and have used Kotlin + MongoDB for the Backend. I will be giving you a list of Api's around 20-30 for which you need to implement that in the frontend and we are open to designs so you could use a theme or UI projects which you have done in your earlier projects. Thanks