Braintrust
BraintrustVerified listing

QA Automation Engineer – Web3

28–31/hr
Remote · Mexico; South America
contract
Posted October 27, 2026
Not sure you qualify? Match your resume

Listing checked October 28, 2026 · pay as published by Braintrust

Key details

Pay
$28–31/hr
Location
Remote · Mexico; South AmericaMexico
Job type
contract
Posted
October 27, 2026

Overview

A stealth fintech team needs a quality engineer who can cover both manual sweeps and automated suites for a Web3 product across web and mobile. Day to day you will verify wallet connections through MetaMask, Trust Wallet, and WalletConnect, check transaction signing, and separate on-chain behavior from off-chain logic. You also own end-to-end checks on third-party exchange integrations, including Coinbase-style connect flows. Bug reports go into Linear (or Jira) with tight reproduction steps, and you collaborate with colleagues spread across US, Europe, and India time zones.

What You'll Do9

  • Run recurring daily regression sweeps and functional passes on web and mobile builds.
  • Design test cases that cover wallet connection, transaction signing, and on-chain versus off-chain paths.
  • Verify exchange and third-party integration flows end to end, from account connect through settlement.
  • Write and maintain automated tests rather than only executing existing suites.
  • Check releases across browsers such as Chrome and Safari and across multiple device types.
  • Set up and manage test accounts, credentials, and the environments each test run needs.
  • Log defects in Linear or Jira with clear reproduction steps and supporting evidence.
  • Pair with developers and product staff across US, Europe, and India time zones to close issues.
  • Confirm on-chain state through blockchain explorers when a test result needs proof.

Requirements9

  • 3 to 5 years in QA or quality engineering, covering manual and automated testing.
  • Hands-on testing of web and mobile applications, including cross-browser and cross-device checks.
  • Discipline in test case design, execution, and regression coverage, with ownership of recurring sweeps.
  • Practical knowledge of Web3 flows: wallet connections (MetaMask, Trust Wallet, WalletConnect), transaction signing, and the split between on-chain and off-chain behavior.
  • Direct experience testing smart contracts and wallet interactions.
  • Track record testing third-party or exchange (CEX) integrations end to end, such as Coinbase-style connect flows.
  • Ability to provision and manage test accounts, credentials, and environments.
  • Scripting at a working level in TypeScript, JavaScript, or Python.
  • Strong written English for async collaboration across distributed time zones.

Preferred Qualifications6

  • Hands-on Playwright or Cypress work, writing and maintaining tests rather than running them
  • Running tests inside CI/CD pipelines such as GitHub Actions or CircleCI
  • Experience with testnets or mocking Web3 providers
  • Use of AI dev tools like Copilot, Cursor, or Claude to speed up test authoring
  • Comfort reading blockchain explorers to verify on-chain state
  • Prior startup or fast-moving product experience

Who Should Apply

Quality engineers with 3 to 5 years across manual and automated testing who have shipped Web3 features and can speak to wallet, smart contract, and exchange integration coverage. You should be comfortable scripting in TypeScript or JavaScript and writing tests in Playwright or Cypress. Distributed teams across US, Europe, and India time zones suit you.

Salary Insight

This freelance engagement pays $28 to $31 per hour. That band lines up with mid-level contract QA automation work, particularly for candidates who already bring Web3 and wallet testing experience rather than learning it on the job.

Pay and demand for Quality Assurance & Testing roles

Market estimates from live NearSkill listings — separate from this job's published terms.

Aggregated

This role · as published

$28–31/hr

Taken from the listing itself.

Typical pay · estimated

$65/hour

Median of 328 similar roles that publish pay · 111 publish only a top rate; those count at the rate they gave

Most Quality Assurance & Testing roles pay $40–$90 per hour. This role's pay sits below that range.

Typical rangeMedian payThis role

Rates shown per hour. Yearly and monthly pay converted; one-time fees and non-USD pay are not included.

Live similar roles
380
Listed in last 30 days
204
Remote
93%

Hiring most right now: SME Careers (113) · micro1 (100) · AfterQuery (35)

Most requested skills · share of roles

  • llm evaluation
    26%
  • ai training
    24%
  • python
    24%
  • trainer feedback
    21%

Figures from Quality Assurance & Testing roles live on NearSkill when this page loaded. A role can close before you apply, so check the listing itself.

Compare your resume against these roles

Required skills

Web3Qa AutomationManual TestingRegression TestingTest Case DesignCypressPlaywrightTypeScriptJavaScriptPythonMetamaskTrust WalletWalletconnectSmart Contract TestingTransaction SigningCex IntegrationsCross Browser TestingMobile TestingLinearJiraGitHub ActionsCircleciCi/cdTestnetBlockchain ExplorersGitHub CopilotCursorArtificial Intelligence

How applying works

  1. 1. Pre-screen on NearSkill

    A quick application on NearSkill checks your fit against this role.

  2. 2. Finish on the employer’s site

    We hand you to Braintrust’s official application page to complete the form.

  3. 3. Wait for a response

    The employer’s hiring team reviews applications and gets back to you.

Share:

Similar jobs

Open roles that match this listing's skills and level.

View all Quality Assurance & Testing jobs