Full Stack Developer Needed for AI Fitness Social Platform (App + Website)

Hello, I’m looking for a talented Full Stack Developer / UI-UX Designer to build a modern Fitness Social Platform (website + mobile app) with a premium, high-quality user experience and clean modern design.

The main goal of the platform is to help gym users track their workout progress in a smart, addictive, and social way.

The concept is a combination of:
Professional Workout Tracking + Social Network + Gamification + AI Fitness Assistant.

Core Features:

* Track workout weights and exercise performance
* View previous workouts before each session
* Update current workout reps/weights
* Personal progress tracking over time
* Progress graphs and analytics
* Save custom workout plans

Social Features:

* Social feed for posting workouts
* Upload gym photos and videos
* Body transformation uploads (before/after)
* Likes, comments, shares, followers
* User profiles with stats
* Leaderboards and rankings
* Compare performance with other users
* Competitions and fitness challenges
* Personal achievements and badges
* XP / Levels / Streak systems
* Reward and motivation systems

Nutrition & AI Features:

* Nutrition and calorie tracking similar to MyFitnessPal
* Macro tracking
* Food search / food scanner
* AI Chat Assistant to help users:

* Create workout plans
* Create meal plans
* Answer fitness questions
* Help with motivation and progress

Additional Features:

* User authentication and registration
* Premium modern Dark Mode UI
* Fast and smooth performance
* Fully mobile responsive
* Premium subscription system
* Notifications system
* Explore page
* Search users and content
* Communities / groups
* Private messaging/chat
* Admin Dashboard
* Analytics Dashboard
* Ready for App Store & Google Play deployment

Very Important:
I do NOT want this to feel like a basic fitness app.
I want it to feel like a real modern startup product with strong social engagement, addictive UX, competition, motivation, and community.

Project Details:

* Development Time: 1 Month
* Budget: $300 USD
* Long-term collaboration possible if the project goes well

Please send:

* Portfolio / previous projects
* Tech stack recommendation
* Estimated server costs
* Whether you can handle future scaling and updates

I’m looking for someone creative, fast, reliable, and serious about building something big together.