Solidity developer needed for DEX smart contract development

Looking for an experienced Solidity developer to build, audit, and integrate smart contracts for a decentralized exchange (DEX). The ideal candidate has real production experience in DeFi projects and understands smart contract security and best practices. Responsibilities - Design and develop smart contracts using Solidity for a DEX protocol - Implement core DeFi logic such as liquidity pools, swap mechanisms, and fee handling - Review, test, and audit smart contracts to ensure security and correctness - Optimize contracts for gas efficiency - Deploy and verify contracts on EVM-compatible networks - Integrate smart contracts with frontend and backend systems using Web3 or Ethers.js - Write unit and integration tests using tools such as Hardhat or Foundry Requirements - 1+ year of hands-on Solidity development experience - Experience working on real blockchain or DeFi projects - Strong understanding of EVM-based smart contracts - Knowledge of common smart contract vulnerabilities and mitigation techniques - Experience with Web3, Ethers.js, or similar libraries - Ability to write clean, well-documented, and testable code Preferred qualifications - Prior experience building or contributing to DeFi or DEX protocols - Experience with smart contract auditing tools (for example Slither or MythX) - Familiarity with upgrade patterns such as proxy or UUPS - Experience deploying contracts to mainnet or public testnets Please include links to relevant portfolio and github repositories, deployed contracts, or a brief description of previous DeFi or DEX work.