A really tiny version of freelancer.com

Front-End written in Angular 2 and Back-End in Node.js. Third Party Integration like Auth0 or Firebase etc are allowed. I am a developer by myself, so I could finish the project if there should be something left. Therefore, please make comments. The website contains 3 types of Users. Workers, Work Offerer and Admins. Workers and Work Offerer belong to the group of normal internet users, who visit the website and are able to register and login. For the beginning there should be only one Admin. The Main-Admin should be possible to create more Admin [login to view URL] Admins should be able to manage User-Accounts (Workers, and Work-Offerer), like delete and view their profile. Only the Main-Admin can delete the other Admin-Accounts. The Main-Admin account can't be deleted from others. Work-Offerer can submit their tasks by filling out a post or form. The form should include options like hourly wage, fixed price, location, required skills chosen by radio-buttons and additional information in a text field. Workers can view open tasks fitting their profile (like skills, location etc) and submit a request to take the offer. Work-Offerer can't contact Workers directly, they can only see the number of available Workers fitting their request. The request should be redirected to the Admins, and the Admins decide whether the Worker takes the task or not. An integrated message system for Workers and Work-Offerer to send and receive Messages from and to the Admins would be a nice to have. Summarizing, this website would be like a tiny version of freelancer.com with simple and less functions.