Kairos
Back to gigs

QA Automation Engineer – Web3

Remote

Stealth Fin tech · Mexico, PH / South, US

Fresh
Gig
Braintrust

Compensation

$28-$31/hr

Apply on Braintrust

Description

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

Contract
Long
Engagement
Freelance

Skills & categories

PythonTypeScriptJavaScriptCI/CD
Posted
Oct 26, 2026
Slots remaining
1
First seen
Oct 26, 2026
Last seen
Oct 26, 2026