Secure Blockchain Escrow Development

I'm in need of a seasoned blockchain developer to create a secure and trustworthy blockchain escrow system. The project will encompass both front-end and back-end development, as well as design. The utmost priority for this project is the security and trustworthiness of the escrow system.

Key Responsibilities:
- Develop a secure blockchain escrow system on the many different coins platform
- Design a user-friendly front-end
- Build a robust back-end
- Ensure the system incorporates essential security features such as multi-signature transactions, smart contract auditing and two-factor authentication

Ideal Skills and Experience:
- Extensive experience in blockchain development, specifically on the Ethereum platform
- Proficiency in front-end and back-end development
- Strong design skills
- In-depth knowledge of multi-signature transactions, smart contract auditing and two-factor authentication
- Experience with smart contract auditing