Business Marketplace Website Development

I need a website similar to https://www.bizbuysell.com/ for buying and selling businesses.

Key Features:
- User registration and profiles: Users need to create accounts to buy or sell businesses. Profiles should display their business listings or purchase history.
- Advanced search and filters: Implement a comprehensive search functionality that allows users to filter businesses based on different parameters such as industry, price range, location etc.
- Transaction processing: Secure and seamless transaction processing is critical. This involves payment gateways and transaction tracking.

User Roles:
- Buyers and Sellers: The main participants of the platform.
- Admins and Moderators: Responsible for overseeing transactions, managing users and maintaining the integrity of the platform.

Ideal Skills:
- Proficiency in eCommerce site development
- Experience with user registration systems and profile management
- Expertise in creating advanced search functionalities
- Familiarity with secure transaction processing systems
- Understanding of multi-user role platforms

Please provide examples of similar projects you have completed in your proposal.