Remote QA Engineer for AI Web App Browser Validation

Company: Mercor
Apply for the Remote QA Engineer for AI Web App Browser Validation
Location: London
Job Description:

Mercor is seeking a QA/Software Engineering Reviewer to validate browser-based tests for AI-generated web applications. This remote contract role requires strong experience in software QA, SDET practices, and automated UI testing with Playwright, Cypress, or Selenium.

You will review testing workflows, ensure deterministic results, and provide structured feedback to improve test reliability and isolation across complex web environments.

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Posted: October 3rd, 2026