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Engineering

How to Hire a QA Engineer

A good QA Engineer does not simply find bugs at the end of a sprint. They help the team understand risk, decide what deserves testing and build checks that keep working as the product grows. Because the role sits between product, engineering and users, hiring well means looking at judgement and communication as much as tools. This guide explains how to find, assess and hire the right person.

Test DesignTest AutomationAPI TestingExploratory TestingBug ReportingCommunication

What to Look For

  • A risk-based approach: the candidate can explain what they test first and why
  • Real experience with automation, including how they kept tests stable and maintainable
  • Curiosity in exploratory testing: the habit of asking what happens if the user does something unexpected
  • Precise bug reporting that makes a developer's work easier rather than harder
  • Technical comfort with APIs, databases and logs, not only the user interface
  • Constructive communication when they have to deliver bad news about a release

The Hiring Process

  1. 1

    Clarify the type of QA you need

    Decide whether you need mostly manual and exploratory testing, an automation specialist or a mix. State the stack, the release rhythm and who the QA engineer will work with.

  2. 2

    Screen on testing mindset

    In a short call, ask how the candidate tests a simple feature such as a login page. Listen for coverage of edge cases, data, security and usability rather than a list of tools.

  3. 3

    Practical exercise

    Give a small application or a feature description and ask for a test plan, a few bug reports and, for automation roles, a handful of automated checks. Time-box it and keep it realistic.

  4. 4

    Technical interview

    Review the exercise together. Ask about framework choices, flaky tests, test data and how the suite runs in CI.

  5. 5

    Collaboration interview

    Meet a developer and a product manager. Explore how the candidate handles disagreement about severity or release readiness.

  6. 6

    Reference checks

    Ask former colleagues about reliability, the quality of bug reports and how the candidate worked with developers under deadline pressure.

Interview Tips

  • Ask the candidate to test an everyday object or a simple screen live and watch how they structure their questions
  • Ask for a real bug they are proud of finding and what made it hard to detect
  • Probe how they decide when to stop testing: it reveals their sense of risk
  • Ask how they would react if a release date is fixed and critical defects are still open
  • Have them read a poorly written bug report and explain how they would improve it

Red Flags

  • Describes testing only as clicking through screens, with no mention of risk or test design
  • Treats automation as a goal in itself and cannot explain what should stay manual
  • Blames developers for defects instead of discussing how to prevent them
  • Cannot say how they would make a flaky test reliable
  • Gives vague answers about which bugs they personally found or which tests they wrote
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How to Hire a QA Engineer — Hiring Guide (2026) | Passisto