Preparing for a competency-based interview
Editorial team · 6 Jul 2026 · 8 min read
Most employers now interview against competencies, not just CVs. Learn how these interviews work, the questions to expect and how to prepare answers that stand out.
Walk into a corporate interview expecting a friendly chat about your CV and you will be caught off guard. Most employers now run a competency-based interview, which means they are testing how you work, not just what you have done. The good news is that this style of interview rewards preparation more than polish. An interview you can prepare for is an interview you can pass, and this guide shows you exactly how.
What a competency-based interview actually is
A competency-based interview is built around the skills and behaviours the role genuinely needs: stakeholder management, commercial judgement, resilience, teamwork, delivery under pressure. For each competency, the panel wants a real example from your past, because past behaviour predicts future performance better than anything else you can say in an interview.
Companies lean on this approach for a practical reason. An unstructured interview favours confident talkers and produces inconsistent hires. Scoring every candidate against the same competencies, with evidence, is fairer and far more reliable. So in a competency-based interview the panel is listening for specifics: what the situation was, what you actually did, and what happened as a result.
You can usually spot a competency-based interview from the invitation. If the email lists the behaviours you will be assessed against, or the questions all begin with "tell me about a time", you are heading into one.
Research the panel expects before a competency-based interview
Read the job advert twice before the interview and highlight every behaviour it names. Those are almost certainly the competencies your competency-based interview will score. A public sector or large corporate advert often lists them outright, which turns your preparation into a checklist.
Then read the company. You do not need an essay, but you should know what they sell, who their customers are, roughly how they are performing, and one thing that changed recently. Bringing that into an interview signals genuine interest without any need to flatter anyone.
Build an example bank before the competency-based interview
This is the single highest-value hour of preparation you can spend. Before any competency-based interview, write down eight to ten stories from your working life. Draw them from different jobs, different teams and different kinds of problem, so you are not retelling the same project all afternoon.
For each story, note the situation, what you personally did, and the outcome with a number attached if one exists. Money, time, volume, headcount, percentage. A competency-based interview turns on evidence, and a figure makes evidence land.
Good stories usually come from one of these: a deadline that moved, a disagreement you resolved, a process you improved, a mistake you owned, a person you influenced without authority, a project that went wrong. Most competencies in a competency-based interview can be answered from that list.
Use STAR, but keep it tight
STAR gives your answer a spine: Situation, Task, Action, Result. In a competency-based interview it stops you rambling, which is the most common way strong candidates lose marks.
Keep the situation to two sentences, because interview time is short. The panel needs enough context to follow you, nothing more. Spend most of your answer on the action, because that is what the competency-based interview is actually scoring, and always finish on the result. Aim for two minutes per answer.
The word to watch is "we". Panels hear a lot of we in a competency-based interview and it hides who did what. Describe the team briefly, then switch to I for your own contribution.
The competencies that come up most
Across UK corporate hiring, a competency-based interview tends to circle the same ground:
- Stakeholder management and influencing
- Problem solving and decision making
- Resilience and handling pressure
- Teamwork and collaboration
- Planning, delivery and prioritisation
- Customer focus
- Leading or developing others
- Adaptability and handling change
Map two stories to each competency before the interview. Overlap is fine and expected, because one strong project often evidences three competencies at once.
Questions you will hear
The phrasing changes but a competency-based interview reuses the same shapes:
- Tell me about a time you had to influence someone who disagreed with you.
- Describe a situation where priorities changed at short notice.
- Give an example of a difficult decision you made with incomplete information.
- Tell me about a mistake you made and what you did next.
- Describe a time you had to deliver through people who did not report to you.
That last one appears in almost every competency-based interview for a management role, so have an answer ready.
What the scoring actually looks like
Most panels mark each competency on a scale, often one to five, against written criteria. A middling score usually means the answer was relevant but thin on evidence. A high score means the panel could picture the situation, could tell what you personally did, and heard a clear result.
This is why a competency-based interview rewards preparation over charm. You are not being judged on how likeable you seem across the interview table. You are being judged on whether your examples meet the standard written on the form in front of them.
If you draw a blank, say so and ask to come back to it. Panels running a competency-based interview would far rather do that than sit through an invented story that falls apart under questioning.
Practise saying it out loud
Reading your notes is not practice. Say each answer aloud, ideally to another person, and time it as if you were sitting in the interview. Most people find their first attempt runs four minutes and their third runs two.
Record an interview answer if nobody is available to listen. It is uncomfortable, but you will hear the filler immediately. Candidates who rehearse aloud walk into the interview room sounding prepared rather than rehearsed, which is the balance a competency-based interview is looking for.
On the day
Take your example bank with you on a single sheet, with just headings, not scripts. Nobody minds a candidate glancing at notes in a competency-based interview, and it beats losing a good story to nerves.
Listen to the whole interview question before answering. If the interview question is unclear, ask. Getting thirty seconds into an interview answer aimed at the wrong competency wastes the best story you had.
Bring water, arrive early for the interview, and expect the first competency-based interview question to be the friendliest one. Panels usually open gently to settle you.
Phone and video competency-based interview formats
Plenty of employers now run the first competency-based interview by phone or video, and the scoring is identical. What changes is everything around it.
On a video interview, put your notes behind the camera, not to one side, so your eyes stay up. Test the microphone the day before, not five minutes ahead. If the connection drops mid interview, call back straight away and carry on; every panel has seen it happen.
A phone interview removes body language entirely, so your voice does the work. Stand up if it helps you project. Because the panel cannot see you nodding, leave a clear beat at the end of each answer so they know to move on.
Treat a first-stage interview as a real one regardless of format. Candidates lose more offers at this stage than at any other, usually because they prepared for the second interview and not the first.
When a competency-based interview goes badly
Everyone gives a bad answer in an interview sooner or later. What matters is what you do next, and a competency-based interview gives you room to recover.
If you finish an answer knowing it was thin, say so. A simple "that example was weaker than I would like, can I give you a better one" costs nothing and shows self-awareness, which is itself a scored behaviour in many a competency-based interview.
If you freeze completely, pause and take a drink. Silence in an interview feels far longer to you than it does to the panel. An interview is not a memory test, and nobody expects instant recall of a project from four years ago.
Do not let one poor answer bleed into the next. Each competency is scored on its own, so a weak score on resilience does not touch your teamwork mark. Candidates who mentally leave the interview after one stumble lose marks they had already earned.
The questions you ask them
Every interview ends with your turn, and it counts. Ask what success looks like in the first six months, how the team is structured, or what the biggest challenge facing the role is; a good interview question of your own is remembered. Avoid asking anything a competency-based interview panel would expect you to have found on the website.
After it ends
Write down every interview question you were asked while it is fresh. If this competency-based interview does not turn into an offer, that list is the start of your preparation for the next interview, and the second competency-based interview always goes better than the first.
Ready to put it into practice? Browse live corporate roles and apply direct to the employer.