Comprehensive User Role & Course Management System in next.js and supabase

i have a ready supabase database with flutter app now by nextjs and supabase i want to make a control panel dashboard for a app which it contains crypto and forex and other local money so i have in it brokers they have profile they can post photo-vedio and i have trainers which they can also upload there courses and i have admin which they can control the app like adding carousel , quiz questions ,see dashboard statistics and more I'm seeking a developer to create an elaborate platform with diverse user roles and comprehensive management tools. The system must support different types of users with unique permissions - Admins, Brokers, Trainers, and regular Users. Key Features: 1️⃣ Authentication & Role Management - The system should handle different permissions for Admins, Brokers, Trainers, and Users. 2️⃣ Brokers Management - Implement CRUD (Create, Read, Update, Delete) functionalities for broker profiles. - Brokers should be able to manage their profiles, including uploading both photos and videos. 3️⃣ Trainers & Course Management - Trainers should have their own CRUD system. - The capability to upload and manage courses (including videos and various sections) is crucial. - Implement a system for tracking course purchases. 4️⃣ Admin Controls - Admins should be able to add/edit carousel banners and quiz questions. - A dashboard for viewing statistics (like total users, courses, and broker profiles) must be included. 5️⃣ Forex & Crypto Market Data - The system should allow users to view the latest prices from Forex, Crypto, and local exchanges. 6️⃣ Messaging System - A chat system exclusively for Trainer-User interactions is required. 7️⃣ Multi-Language Support - The platform needs to support multiple languages. Ideal Skills and Experience: - Proficiency in User Authentication and Role Management. - Experience in developing CRUD systems. - Previous work with course management software is a plus. - Knowledge in integrating real-time market data. - Familiarity with creating secure messaging systems. - Skills in implementing multi-language support. This project requires an individual with a keen understanding of creating user-centric, interactive platforms. Your ability to deliver a robust, comprehensive system will be key to our success.