Smart Contract Engineer

• Design and develop protocols and high-quality, secure smart contracts.
• Develop and deploy blockchain solutions, ensuring security and efficiency.
• Collaborate with DApp front-end engineers or other team members to deliver integrated and efficient solutions.
• Create technical documentation for blockchain solutions.
   

• Experience in blockchain development, with Ethereum ecosystem.
• Deep understanding of Solidity and standards like ERC20, ERC4626 and ERC721.
• Familiar with contract upgrade patterns (e.g., Transparent, UUPS) and gas optimization best practices.
• Strong grasp of security principles, common vulnerabilities and mitigation strategies.
• Proficient in Foundry, with ability to write comprehensive unit, integration, fuzz, and fork tests.
• Hands-on experience developing, deploying, and maintaining production-grade smart contracts.
• Experience collaborating with auditors or conducting internal audits for DeFi or asset-related smart contracts.
• Proficient with Git, CI/CD workflows.
   

• Experience integrating with oracles (e.g., Chainlink, Pyth) and cross-chain messaging protocols (e.g., LayerZero).
• Experience deploying and managing subgraphs using The Graph, or building internal analytics for on-chain data.
• Familiarity with major DeFi protocols, such as Aave, Uniswap, Curve, MakerDAO, or Balancer, and how they are architected or used in practice.
• Exposure to other Layer 1 ecosystems, such as Solana or Sui, especially smart contract development.
   

[Featured Benefits]
◎ Annual health check
◎ Pet-friendly office

[Vacation System]
◎ Flexible working hours
◎ Better than Labor Standards Act, enjoy your annual leave in the first year
◎ Birthday leave (of course with pay)