I am seeking an experienced blockchain architect to design a public blockchain model, primarily for smart contracts, based on the Ethereum platform.

Requirements:

- Expertise in blockchain architecture, particularly Ethereum.
- Strong understanding and experience with smart contracts.
- Able to design robust, secure, and efficient public blockchain systems.
- Proven experience within the fintech industry is beneficial.

I'm expecting high-quality design model for smart contracts, aligning with the best practices within the blockchain world.

Let's discuss if you have the knowledge and experience I need. Please include examples of similar projects you've completed in the past. Your proposal should be detailed enough to give me confidence in your abilities.