QA engineer hiring: designing interviews that work

To hire a QA engineer well, design an interview that tests real testing judgement through practical exercises, structured questions and a bug-hunting task, so you assess how someone thinks, not just what they know.
Author

Axel Pividori

Job Title

Quality Assurance & Business Analyst

What does the UK Computer Software hiring market look like right now?

The market is cautious but selective. Through 2025, businesses took a careful approach to hiring, yet clear demand hotspots remained for specialist tech skills including AI, data, enterprise applications and cyber security Computer Weekly (tech recruitment outlook 2026). Quality assurance sits right in the middle of that picture: as software teams ship AI features and connect more systems, the cost of shipping broken code goes up, and good QA engineers get harder to replace.

The wider labour market is quiet. Vacancy estimates fell again in the second quarter of 2026, down 7,000 on the quarter to 712,000, with the largest decrease in professional, scientific and technical activities ONS - Vacancies and jobs in the UK. That's the same broad sector where a lot of software roles sit. A cooler market means more applicants per role, so a sharp interview process matters more than ever: you need to sort quickly and fairly.

At the same time, the entry-level door has narrowed. UK tech graduate jobs were cut by 46 percent in the past year, with a further 53 percent drop projected The Register, and entry-level job postings have dropped around 30 percent since ChatGPT launched techUK – What's actually happening with entry-level and graduate jobs?. Fewer junior openings today means a thinner mid-level pipeline tomorrow. Smart QA interviews spot potential early, not just polished CVs.

What makes QA engineer roles different to interview for?

QA is a mindset as much as a skill set. A strong QA engineer breaks things on purpose, asks what could go wrong and translates fuzzy requirements into clear, testable cases. That's hard to read from a CV, which is why generic technical interviews often miss it. You're hiring for curiosity and rigour, not just tool knowledge.

The role is also broadening. Demand for AI skills rose nearly 200 percent in a year, with London accounting for 80 percent of AI-related job postings The Register (Accenture data). QA engineers now test AI-driven features, data pipelines and automated flows, so many roles blend manual testing judgement with automation and scripting. Decide up front which mix you actually need before you design the questions.

And the talent tends to be homegrown. For engineering professions, the vast majority of new hires come from the resident labour force GOV.UK - Professionals in IT and engineering. So keep your interview open to people who learned QA on the job, not only through a computer science degree.

How do you design a QA engineer interview that actually works?

Start with the job, not the questions. Write down the three or four things this person must do well in their first six months, then design one exercise per must-have. Use the same structure for every applicant so you compare like with like. Structured, consistent interviews are fairer and more predictive than a loose chat.

  • Run a live bug hunt. Give a small, deliberately buggy app or webpage and ask the person to find and log defects out loud. You learn far more from watching them explore than from asking how they would test something.
  • Test case design from a vague brief. Hand over a short, incomplete feature description and ask them to write test cases. Good QA engineers ask clarifying questions and cover edge cases, not just the happy path.
  • Assess the right automation level. Match the coding task to the role: a reasonable scripting or framework question for automation roles, and clear judgement over blind coverage for manual-heavy ones.
  • Probe communication. QA lives between developers, product and support. Ask how they would report a critical bug days before launch, and listen for how they balance clarity, evidence and tone.
  • Score against a rubric. Agree what strong, adequate and weak look like for each exercise before you interview, so decisions rest on evidence rather than gut feel.

Keep the process short and respectful. In a low-hire market, top QA engineers still have options, so a slow or bloated process loses good people. Two focused stages usually beat five vague ones. Give feedback quickly, and be explicit about what happens next at every step.

Where does an AI recruitment agent fit into hiring your next QA engineer?

Designing the interview is half the job; finding the right people to interview is the other half. We search a database of more than 15 million candidates and surface a ranked shortlist so you spend your time on the strongest QA engineers, not on sifting. Once your rubric is ready, you're interviewing better matches sooner. Our recruitment agent manages recruitment end to end for 8% on a successful hire, with no monthly fee and no upfront cost. Ready to hire a QA engineer? Start a role with Reed.ai today.

Axel Pividori
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