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:
- The business model, how does the company make money? Who are its customers?
- Recent news, funding rounds, product launches, leadership changes, anything in the last 6 months
- The team, look up your interviewers on LinkedIn. What have they worked on? Any shared background?
- The product, use it. For software companies, sign up. For consumer brands, buy something. For service businesses, understand the client experience
- The role specifically, go through the job description line by line. For each responsibility, think of an example from your background that shows you can do it
- Competitors, know who they compete with and roughly how they're positioned differently
This research has two purposes: it lets you give specific, informed answers, and it lets you ask intelligent questions. Both matter.
- 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:
- A time you overcame a significant challenge
- A time you showed leadership (formal or informal)
- A time you had a conflict and resolved it
- A time you failed or made a mistake, and what happened after
- Your greatest professional achievement
- A time you worked effectively in a team
- A time you had to persuade someone
- A time you adapted to a major change
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.
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:
- "What does success look like in this role after 90 days?"
- "What's the biggest challenge the team is currently facing?"
- "How does this team make decisions?"
- "What do you wish you'd known before joining?"
- "What does growth look like for someone in this role?"
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:
- Know the exact time and time zone (video interviews especially, companies in different cities)
- For in-person: plan your route, do a dry run, know where to park or which tube stop
- For video: test your camera and microphone, check your lighting and background, have the meeting link saved somewhere easy to find
- Have a printed or digital copy of your CV in front of you
- Know the names of everyone you're meeting
- Have water nearby
- Have a pen and paper to take notes
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:
- Your "tell me about yourself" answer, this comes first in almost every interview. It needs to be fluid
- Each of your 6-8 stories, told in under 2-3 minutes each
- "Why do you want to work here?", specific to this company
- "Why are you leaving your current role?", if applicable
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
- 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