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QA Automation Engineer – Web3

Braintrust BrainTrust ContractSouth America $28–31/hr
Posted Oct 26, 2026 · ✓ Still open — checked 33 minutes ago

Quick facts

Pay
$28–31 / hour
Type
Contract
Location
South America
Hours
40+ hours / week
Skills
Python, JavaScript, TypeScript
Platform
BrainTrust — 135 open jobs
Typical pay at BrainTrust
$15–100/hour · median $30 (111 jobs on our site)
Payout
Bank transfer, Wise, Stripe, USDC/USDT (when client pays invoice)
Apply
Free to apply — never pay to get AI training work
  • Rate: $28 – $31/hr
  • Hours: 40 hours / week
  • Experience: 3 - 5 years
  • Location: United States | Canada + 9 more

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

Company: QA Automation Engineer – Web3
Rate: $28 – 31/hr
Location: South America
Apply here: https://app.usebraintrust.com/r/eve125/

Braintrust is a talent network that matches freelancers and professionals with companies, including AI labs that need experts for training and evaluation work. Its AI recruiter handles screening.