Modern Clean Figma UI for Web and Android

I need Figma UI designs for both a web app and Android app for a footy tipping site. The design should be modern and clean.

Essential Features:
- User login/signup
- Tip submission
- Leaderboard
- My picks screen
- Minimal profile screen

Ideal Skills and Experience:
- Expertise in Figma
- Experience designing for both web and mobile platforms
- Strong portfolio showcasing modern and clean UI designs
- Familiarity with user-friendly navigation and interactive elements

Please include your portfolio with your bid.