Full Stack Developer for Mobile Puzzle App

I'm seeking an experienced Full Stack Developer to help build a puzzle-based mobile application from scratch. The project will include both frontend and backend development, with an estimated 5–6 mobile screens.

Key Requirements:
- End-to-end development (Frontend + Backend)
- Responsive and user-friendly UI
- Efficient and scalable backend architecture
- Integration of basic user features (e.g., login, game logic, leaderboard, etc.)
- Familiarity with deploying to Play Store / App Store is a plus

Ideal Skills and Experience:
- Proficiency in mobile app development for both iOS and Android
- Strong backend development skills
- Experience with UI/UX design for mobile applications
- Knowledge in integrating various login methods

Please provide portfolio and relevant experience.