Android UI Developer Needed

I'm looking for an experienced Android UI developer proficient in Kotlin and Jetpack. The ideal candidate should have a strong background in developing fully functional, production-grade applications. Key capabilities required include:

- User Authentication: Implement social media login via Facebook and Google.
- In-app Purchases: Support subscription-based purchases.
- Multiple Views: Design and develop various app views, with easy-intuitive navigation
- Custom Themes: Create and apply custom themes for the app UI.

Ideal Skills and Experience:
- Expertise in Kotlin and Jetpack
- Proven track record in developing production-grade Android apps
- Experience with social media authentication integration
- Strong UI/UX design skills to develop custom themes and multiple views

Please provide examples of past work and relevant projects.