Creating a exam portal for GRE-GMAT

I am looking for someone to create an exam portal for GRE-GMAT that includes the capability for students to take exams online. The exams will consist of differnt type of questions. I have specific design requirements for the portal, so it must be user-friendly and look professional. This assignment will require skilled software developer (React js, Django, Python), and I am looking for a freelancer who can meet the given requirements.