MERN Stack Devloper (for developing a website)

Its a website in which co-founders and entrepreneurs can connect with each other.(just like y-combinator "find a co-founder section" but it should show the matching profiles like in "starthawk" website).we have already created our frontend and authentication means upto login part is done.After login page the display should go the extra details filling page like in y-combinator "find a co-founder section" and saves all the user data in the particular user registration data as a sub-document , and after filling all the neccessary details when user clicks on the final submit button it should go to its profile page(make the user profile page which catagorize entreprenuers(like co-founder, CTO etc),individuals,groups). And to connect user give chat ,group chat,video call,voice call features. We use MERN to develop our website. MERN is required.