Guide · 12 min read
50 interview questions worth actually preparing for.
HR + Behavioural + Technical, with the meta reason each one gets asked.
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HR / Screening (they're testing baseline fit)
- "Walk me through your resume." — Signal: can you tell a coherent story with a throughline?
- "Why us?" — Signal: did you do 15 minutes of homework?
- "Why leaving current role?" — Signal: mature framing, not blame.
- "Salary expectations?" — Signal: are you researched and self-aware?
- "Notice period?" — Signal: logistics + integrity in existing commitments.
- "Have you applied elsewhere?" — Signal: are you serious about the search?
- "Where do you see yourself in 5 years?" — Signal: intentionality, not ambition olympics.
- "What's your biggest weakness?" — Signal: self-awareness. Please, no "perfectionism".
Behavioural (STAR method eats these for breakfast)
- "Tell me about a time you disagreed with your manager."
- "Tell me about a time you failed."
- "Tell me about a difficult teammate."
- "Tell me about your biggest professional win."
- "How do you handle tight deadlines?"
- "Describe a time you had to persuade someone."
- "When did you take initiative without being asked?"
- "When did you receive tough feedback? How did you react?"
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Technical — Software
- Explain HTTPS vs HTTP.
- What's the difference between SQL and NoSQL?
- Explain event loops in JS.
- How would you scale a URL shortener to 1B URLs?
- Explain caching layers (browser, CDN, app, DB).
- Diff between processes and threads.
- What's the CAP theorem?
- Explain OAuth 2.0 in one minute.
Reverse (questions YOU should ask)
- "What does success look like in this role at 6 months?"
- "How is performance measured here?"
- "What's the team's biggest current challenge?"
- "Why is this role open?"
- "How would you describe the manager's style?"
Prep the story, not the script. Interviewers can smell rehearsed answers a mile away.