A Web3 developer is someone who specializes in developing decentralized applications (DApps) that interact with the Ethereum blockchain and other decentralized technologies. Here are 15 features/advantages of a Web3 developer:

1. Proficiency in web development technologies like HTML, CSS, and JavaScript.

2. Knowledge of blockchain technology and its underlying principles.

3. Understanding of decentralized systems and peer-to-peer networks.

4. Familiarity with Ethereum and other blockchain platforms.

5. Ability to interact with smart contracts using Web3.js or similar libraries.

6. Experience in building user interfaces for DApps.

7. Knowledge of decentralized storage systems like IPFS.

8. Understanding of decentralized identity and authentication protocols.

9. Proficiency in using development tools like Remix or Truffle.

10. Ability to integrate DApps with external APIs and services.

11. Knowledge of blockchain consensus mechanisms and transaction validation.

12. Awareness of privacy and security considerations in decentralized systems.

13. Experience in building decentralized finance (DeFi) applications.

14. Understanding of token standards and tokenomics.

15. Continuous learning and keeping up with the latest developments in the Web3 ecosystem.