User & Org Management Components

My current web application already handles core business logic, but the organisation / user layer is still missing. I need a self-contained module—both back-end hooks and front-end components—that lets me: • Define the three roles we will support: Admin, Contributor and Viewer... (Budget: $750 - $1500 AUD, Jobs: API Development, Backend Development, Frontend Development, HTML, Next.js, Node.js, PostgreSQL, React.js, Website Design)