QA Engineer Jobs in Crypto & Web3

Web3 QA and test engineering roles guard against costly on-chain failures by writing automated tests for smart contracts in Foundry and Hardhat, building integration suites, and validating dApp behavior across wallets and networks. Forked mainnet testing and fuzzing are standard tools.

These engineers design test plans for upgrades and migrations, verify gas and edge-case behavior, run end-to-end flows with Playwright or Cypress, and coordinate with auditors. Because bugs can mean lost funds, attention to security scenarios and reproducible test environments is essential.