An Ethereum job typically involves working with blockchain technology, smart contracts, and decentralized applications (dApps) using Ethereum's ecosystem. Common roles include blockchain developers, smart contract auditors, DeFi engineers, and researchers specializing in Ethereum protocols. These jobs require proficiency in Solidity, web3.js, and Ethereum development frameworks like Hardhat or Truffle. Employers range from startups to large enterprises building blockchain solutions, decentralized finance platforms, or NFT marketplaces.