SharePoint Intranet Portal Development

I need a modern SharePoint-based intranet portal that lets employees share and collaborate on documents with as little friction as possible. The build will sit in Microsoft 365 (SharePoint Online) and should feel seamless alongside Teams and OneDrive... (Budget: $30 - $250 USD, Jobs: Agile Development, C# Programming, HTML, Microsoft 365, Power Automate, Project Management, Sharepoint, Website Design)