Fun.xyz is a company focused on creating a tokenized future that enables financial emancipation through blockchain technology. They are seeking a Protocol Engineer to join their core blockchain team ...
Fun
1 job near Columbus, OH
Fun.xyz is a company focused on creating a tokenized future that enables financial emancipation through blockchain technology. They are seeking a Protocol Engineer to join their core blockchain team ...
Job description
Job Summary:
Fun.xyz is a company focused on creating a tokenized future that enables financial emancipation through blockchain technology. They are seeking a Protocol Engineer to join their core blockchain team, where the role involves designing and implementing smart contract systems and blockchain integrations for Web3 payments infrastructure.
Responsibilities:
• Design, develop, and deploy secure smart contracts and protocol implementations across multiple blockchain platforms
• Collaborate with backend and product teams to architect blockchain solutions that meet business requirements
• Write highly efficient, well-tested code and participate in security audits to ensure protocol safety
• Research and evaluate new blockchain technologies, protocols, and DeFi primitives for integration opportunities
• Contribute to incident response and debugging on-chain issues to ensure protocol reliability
Qualifications:
Required:
• Strong experience building and deploying production smart contracts on major blockchain platforms
• Deep understanding of blockchain architecture, consensus mechanisms, and cryptographic principles
• Hands-on experience with smart contract development languages (Solidity, Rust, Move, etc.)
• Solid grasp of DeFi protocols, token standards, and cross-chain communication patterns
• Strong security mindset with knowledge of common smart contract vulnerabilities and best practices
• Clear communicator who can explain complex blockchain concepts to cross-functional teams
Preferred:
• Production experience with multiple blockchain ecosystems (Ethereum, Solana, L2s, etc.)
• Previously worked at crypto startup or Web3 infrastructure company
• Experience with cross-chain bridges, oracles, or interoperability protocols
• Background with high-volume DeFi protocols or DEX infrastructure
• Contributions to blockchain open source projects or protocol research
• Experience with formal verification or advanced smart contract testing frameworks
Company:
Fun develops payment infrastructure designed for web3 and digital asset transactions. Founded in 2022, the company is headquartered in San Francisco, USA, with a team of 11-50 employees. The company is currently Early Stage.
Fun.xyz is a company focused on creating a tokenized future that enables financial emancipation through blockchain technology. They are seeking a Protocol Engineer to join their core blockchain team, where the role involves designing and implementing smart contract systems and blockchain integrations for Web3 payments infrastructure.
Responsibilities:
• Design, develop, and deploy secure smart contracts and protocol implementations across multiple blockchain platforms
• Collaborate with backend and product teams to architect blockchain solutions that meet business requirements
• Write highly efficient, well-tested code and participate in security audits to ensure protocol safety
• Research and evaluate new blockchain technologies, protocols, and DeFi primitives for integration opportunities
• Contribute to incident response and debugging on-chain issues to ensure protocol reliability
Qualifications:
Required:
• Strong experience building and deploying production smart contracts on major blockchain platforms
• Deep understanding of blockchain architecture, consensus mechanisms, and cryptographic principles
• Hands-on experience with smart contract development languages (Solidity, Rust, Move, etc.)
• Solid grasp of DeFi protocols, token standards, and cross-chain communication patterns
• Strong security mindset with knowledge of common smart contract vulnerabilities and best practices
• Clear communicator who can explain complex blockchain concepts to cross-functional teams
Preferred:
• Production experience with multiple blockchain ecosystems (Ethereum, Solana, L2s, etc.)
• Previously worked at crypto startup or Web3 infrastructure company
• Experience with cross-chain bridges, oracles, or interoperability protocols
• Background with high-volume DeFi protocols or DEX infrastructure
• Contributions to blockchain open source projects or protocol research
• Experience with formal verification or advanced smart contract testing frameworks
Company:
Fun develops payment infrastructure designed for web3 and digital asset transactions. Founded in 2022, the company is headquartered in San Francisco, USA, with a team of 11-50 employees. The company is currently Early Stage.