Active 5 days ago - Senior Blockchain Full Stack Engineer Current Location: Saddle Brook, NJ, US Languages: Chinese, English Skills: Blockchain Development, Javascript, Python, React, Solidity Responsibilities: Developed and deployed ERC20-compliant Rev Coin smart contracts on Ethereum mainnet and testnets (Sepolia, Holesky) with advanced tokenomics and vesting mechanisms utilizing OpenZeppelin contracts. Implemented a decentralized exchange system that aggregates liquidity from multiple DEXs (Uniswap V3, SushiSwap, Curve) using 0x Protocol and custom AMM pools for optimal trading efficiency. Engineered secure vault contracts with multi-signature functionality for employee token management, featuring automated distribution systems integrated with company HR infrastructure. Designed and developed the sequencer for syncing L1 states and retrieving zk proof, using Golang. Designed and deployed cross-chain bridge infrastructure utilizing LayerZero protocol, enabling seamless Rev Coin transfers between Ethereum, BSC, and Polygon networks with fallback mechanisms. Implemented ERC-4337 account abstraction using EntryPoint contract and custom Account Factory, enabling gasless transactions, batch transactions, and social recovery mechanisms for enhanced employee UX, while integrating Stackup's bundler infrastructure for UserOperation handling. Built and maintained scalable backend services using Node.js microservices architecture and GraphQL API for real-time transaction monitoring and analytics. Developed custom staking and reward distribution mechanisms through MasterChef-style smart contracts with time-locked rewards and dynamic APY calculations. Implemented DAO-style governance system with delegation mechanisms and automated proposal execution for employee voting and platform management. #J-18808-Ljbffr CryptoStart
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