Music web app with node.js and mysql

I am building a music web user based app. Current state of the project: Register page, login/logout page, home page, profile page(only for authorized users) , pages of each individual song, pages for top liked songs. I need help with the following tasks listed below: 1. Troubleshooting like/dislike requests and functions: For now it is updating in the database and displaying it on the home page, when the client clicks on the like button. It want the like values to be updated without refreshing the page. 2. The audio player is not showing , when you click on the hyperlink for a current track. It's currently working on the home page and the profile page. I can't find why it's not working. 3. Implement authorization/permission level: 3.1. Only authorized users can use the like/dislike function 3.2. Only authorized users can edit and delete their own tracks/songs. 3.3. The pages for edit and delete should only be accessed by authorized users. 3. The tab "Top Tracks" also needs to be fixed. Order the tracks/songs by the number of likes from the highest to the lowest. 4. (OPTIONAL) Some responsive design. If you haven't read the tasks, don't even bother messaging me. I am looking for a serious developer, knowledgeable with node.js and mysql, who can complete and troubleshoot all of the requirements.