Supplier Quality Engineer Interview Questions UK: 8 Real Questions and What Interviewers Want

Before your Supplier Quality Engineer interview, it helps to see the questions from the interviewer's side. We have picked eight from our set of 16 and added the reason each one gets asked.

Eight Supplier Quality Engineer interview questions, and what the interviewer is thinking

1. How do you plan and carry out a supplier audit, and what do you look for on the day?

Why they ask: Supplier audits are the heart of the role and the most commonly tested skill.

2. Explain the difference between a supplier corrective action request and an 8D, and how you manage one to closure.

Why they ask: SCARs are the daily working tool of a supplier quality engineer.

3. How do you decide on inspection levels and use sampling plans such as AQL for incoming goods?

Why they ask: To test practical knowledge of incoming inspection and risk-based control.

4. How do you review a PPAP submission, and what makes you reject one?

Why they ask: PPAP review is a core responsibility in automotive and similar supply chains.

5. What metrics would you use on a supplier scorecard and how do you use them to drive improvement?

Why they ask: Performance measurement is central to supplier quality management.

6. A supplier's defective parts have stopped your production line, and the supplier says the parts meet the drawing. What do you do?

Why they ask: To test urgency, evidence and negotiation with a supplier.

7. Tell me about a time you worked with a supplier to resolve a recurring quality problem.

Why they ask: To assess practical supplier development and collaboration.

8. What does a typical week as a supplier quality engineer look like, and what do you enjoy about it?

Why they ask: To confirm realistic understanding and motivation.

A sample answer to question 1

How do you plan and carry out a supplier audit, and what do you look for on the day?

I begin by defining the purpose: new supplier approval, a periodic system audit, or a process audit after a quality problem. I review the supplier's history, certifications, scorecard data, previous audit findings and the part's criticality, then send an agenda and a request for documents in advance. On the day, I hold an opening meeting, then follow the product through the process, from goods inward to dispatch, rather than just reading procedures. I check that practice matches the documented process, looking at calibration, traceability, control of nonconforming product, training records, inspection records, maintenance and housekeeping. I talk to operators to see if they understand the work instructions. For process audits I might use VDA 6.3 or a customer-specific checklist, and for system audits ISO 9001, AS9100 or IATF 16949 as relevant. Findings are graded, for example major or minor, and I confirm them with evidence in a closing meeting. I then issue a written report, agree a corrective action plan with deadlines and verify closure.

Common mistake to avoid: Auditing documents only; issuing findings without evidence

Want the rest?

Full model answers, key points and common mistakes for all 16 questions are on the Supplier Quality Engineer interview questions page. The first five are free, no sign-up needed.