Senior Flutter +

We have built a production Flutter app and need an experienced developer to implement a complete social layer in 7 days.
This is not a prototype. This is a structured, production-ready implementation that includes:
Usernames + profiles (exist but need social layer)
Follow/friend system
Feed (posts + interactions) - origin content exists
Likes + comments
Social sharing
Invite/referral system with deep links
MongoDB backend ) to support social layer
You must have built and shipped social features before.
Scope of Work
1. Flutter (Frontend)
Implement and integrate:
User profile screen (username, avatar, bio, stats) - currently exist as individual private profiles
Edit profile flow (social)
Follow / unfollow (or friend request system – we will confirm model)
Feed screen (list of posts based on existing content feed)
Like / unlike- engagement buttons and interactions
Comment system
Share post (native share sheet)
Invite friends via...