The average candidate reads the company website and reviews a few common interview questions the night before. Then they wonder why they didn't get the job. Effective preparation is methodical, starts earlier than you think, and focuses on the right things.

This guide gives you a complete preparation sequence, what to do, in what order, and how much time each step actually needs.

Step 1, Research the company and role

This isn't just reading the About page. Useful research means understanding:

This research has two purposes: it lets you give specific, informed answers, and it lets you ask intelligent questions. Both matter.

Research Sources Worth Your Time
  • Company website and recent press releases
  • LinkedIn: company page, your interviewers' profiles, recent company posts
  • Glassdoor: interview reviews (see what questions past candidates got)
  • Crunchbase or Companies House: funding history, company size, growth stage
  • Google News: anything published in the last 6 months
  • The product itself, actually use it

Step 2, Prepare your stories

Every interview involves behavioural questions. "Tell me about a time you..." is the format. These require specific examples from your past, and you need to have them ready before the interview, not improvise them on the spot.

Prepare at least 6-8 stories covering different themes:

Structure each one using the STAR format: Situation (brief), Task (your role), Action (what you specifically did), Result (the outcome). See our full guide on the STAR method.

One story can often cover multiple questions. The same challenge story can serve as your failure story, your leadership story, or your conflict story depending on which aspect you emphasise. Know your stories well enough to do this flexibly.

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Step 3, Prepare questions to ask

Prepare at least 5 questions. You probably won't ask all of them, time will run out or some will be answered during the conversation, but you want enough to fill whatever space opens up.

Questions that work well:

Avoid questions that are easily Googled ("how many offices do you have?") or that are primarily about your interests rather than theirs ("what's the holiday allowance?"). Save compensation questions for later rounds or when the employer raises it. For a full list, see: 15 questions to ask at the end of an interview.

Step 4, Sort the logistics

These sound obvious but they cause problems every week for candidates who haven't thought about them:

Step 5, Practice out loud

Reading your answers in your head is not the same as saying them out loud. You'll be surprised how different an answer sounds when you have to form it into actual speech. Practice matters.

What to practise:

Practise in front of a mirror, record yourself on your phone, or do a mock interview with a friend. The goal isn't to memorise a script, it's to be so familiar with the material that you can present it naturally under pressure. See our article on managing interview nerves for more on reducing anxiety through preparation.

Day-of checklist

The Morning Of
  • Get a full night's sleep the night before (prepare early enough that you're not cramming)
  • Eat before the interview, don't go in hungry
  • Review your notes briefly, not to learn anything new, but to activate what you've prepared
  • Check the interview details one more time: time, format, who you're meeting
  • Arrive or log on early
  • Breathe, some nerves are normal, even useful
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Frequently asked questions

How many days before an interview should I start preparing?
For a role you care about, start 5-7 days out. This gives you time to research properly, draft and refine your stories, practice out loud, and still sleep normally the night before. Cramming the morning of an interview is less effective than spaced practice across several days.
Should I memorise my answers?
No, memorise your key points and your examples, not word-for-word scripts. Memorised scripts sound robotic and fall apart if you get interrupted or asked a follow-up. Know the story well enough that you can tell it in multiple ways. Flexibility comes from familiarity, not memorisation.
How do I prepare for questions I can't predict?
You can't prepare specific answers for everything, but you can prepare a general approach: clarify if the question is unclear, take a few seconds to think before answering, structure your response (for behavioural questions, use STAR; for hypotheticals, think out loud). Preparation makes the framework automatic so you can apply it to novel questions.
Is it okay to take notes during an interview?
Yes. Jotting down the interviewer's name, key points they raise, or questions you want to ask at the end is appropriate and looks organised. Just don't be so focused on note-taking that you're not making eye contact or actively listening.