Classified Ads Android App Development

I'm seeking an experienced Android developer to create a classified ads application focused on buying and selling items, specifically electronics, clothing, and vehicles.

Essential features include:
- User reviews and ratings
- In-app messaging
- Payment integration

Ideal skills and experience:
- Proficiency in Android app development
- Experience with payment gateway integration
- Strong UI/UX design skills
- Familiarity with building review and messaging systems

Please provide a portfolio of similar work.