E-commerce Android App Development

I'm in need of a skilled app developer to create an E-commerce app specifically for the Android platform.

Key Features:
- User Authentication: A secure and seamless registration and login process is essential.
- Payment Integration: The app must support secure and reliable payment gateways.
- Product Search: An intuitive and efficient search function for users to find products easily.

Ideal Skills:
- Proven experience in Android app development, particularly in the E-commerce sector.
- Proficiency in integrating secure payment systems.
- Expertise in implementing user-friendly interfaces and efficient search functions.

I look forward to your proposals with relevant examples of your previous work.