Need to Modify a Browser based app of Creating Interactive Video -- 2

YOUR BID PRICE IS FINAL. NO LATER CHANGE ALLOWED. I need an experienced programmer with good knowledge to modify my website where users can sign up, login and upload video files and then create interactive videos which they can share, embed the videos... (Budget: ₹1500 - ₹12500 INR, Jobs: JavaScript, Node.js, React.js)