Build an Interactive online work area / website

Teachers can create pages for groups e.g different year groups and can add work for a specific pupil log on that only that pupil log on can see. Easy to access from the dashboard Can import video, it would need easy page editing text, images, layout, insert docs, etc Pupil log on they can see their assigned group/pages and then they can upload documents/homework to their area and the teachers can view in their own dashboard area? maybe pupils can chat with teachers or leave messages Teachers are looking for a way to send lessons to pupils whilst they are on lockdown, so we're trying to think of a way to do it securely Finding a developer who has a similar project to be ready. Thank you.