3–5 years in QA/quality engineering, hands-on with both manual/functional and automated testing
Solid test-case design, execution, and regression testing discipline (able to own recurring daily/regression sweeps)
Working knowledge of core Web3 flows: wallet connections (MetaMask, Trust Wallet, WalletConnect), transaction signing, and on‑chain vs off‑chain behavior. Need to have smart contract + wallet testing experience
Experience testing third‑party/exchange (CEX) integrations end to end (e.g. Coinbase‑style connect flows)
Comfortable setting up and managing test accounts, credentials, and environments
Clear, reproducible bug reporting and tracking in Linear (or Jira), with crisp repro steps and evidence
Strong written English and ability to collaborate across US/Europe/India
Must-haves 3–5 years in QA/quality engineering, hands‑on with both manual/functional and automated testing
Experience testing web and mobile apps, including cross‑browser (Chrome, Safari, etc.) and cross‑device verification
Solid test‑case design, execution, and regression testing discipline (able to own recurring daily/regression sweeps)
Working knowledge of core Web3 flows: wallet connections (MetaMask,



Trust Wallet, WalletConnect), transaction signing, and on‑chain vs off‑chain behavior. Need to have smart contract + wallet testing experience
Experience testing third‑party/exchange (CEX) integrations end to end (e.g. Coinbase‑style connect flows)
Comfortable setting up and managing test accounts, credentials, and environments
Clear, reproducible bug reporting and tracking in Linear (or Jira), with crisp repro steps and evidence
Scripting ability in TypeScript, JavaScript, or Python at a working level
Strong written English and ability to collaborate across US/Europe/India
time zones Nice-to-haves Hands‑on with Playwright and/or Cypress (writing and maintaining tests, not just running them)
Familiarity running tests in CI/CD (GitHub Actions, CircleCI)
Experience with testnets or mocking Web3 providers
Comfort using AI dev tools (Copilot, Cursor, Claude) to speed up test authoring
Familiarity with blockchain explorers for verifying on‑chain state
Prior startup / fast‑paced environment experience

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📌 QA Automation Engineer – Web3 (Ciudad de México)
🏢 Braintrust
📍 Ciudad de México