A bidding website where people can post products and users can bid. NEED JAVA AS BACKEND.

I am looking for a developer to create a bidding website where users can post products and other users can bid on them. The backend should be built using Java.

Features:
- User registration and login
- Product listing and bidding
- Payment integration(not real, but just online coins)

Design Preference:
- Minimalistic

Preferred Java Framework:
- Spring

Ideal Skills and Experience:
- Strong knowledge of Java and backend development
- Experience in building bidding websites
- Familiarity with Spring framework

If you have the skills and experience required for this project, please submit your proposal.