INTERVIEW QUESTIONS

Software Engineer interview questions and answers

Questions that come up often for this role, with a short tip on how to answer each one. Use examples from your own work, not memorised lines.

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Software Engineer interview questions with answer tips

Questions about the role

  1. Walk me through a project you are proud of.

    How to answer: Pick one project. Say the problem, your part, the tech you chose and why, and one number that shows the result.

  2. How do you find the cause of a production bug?

    How to answer: Describe your steps: reproduce, read logs, narrow down, fix, add a test so it does not return.

  3. Explain the difference between a process and a thread.

    How to answer: Give a short, correct definition and one example of when you would use threads.

  4. How do you make an API faster?

    How to answer: Talk about measuring first, then caching, query fixes, pagination and reducing payload size.

  5. Tell me about a time you disagreed with a teammate on design.

    How to answer: Use the STAR method. Show that you listened, used data and agreed on a decision.

Common HR questions

  1. Tell me about yourself.

    How to answer: In about a minute: your current role or degree, 1 or 2 results that fit this job, and why you want it.

  2. Why should we hire you?

    How to answer: Match 3 of your strengths to the job post, for example Java, Spring Boot and REST APIs, with proof.

  3. What is your notice period?

    How to answer: Give the exact period and whether early release is possible.

How to prepare

  • Read the job post and list the skills it asks for.
  • Prepare 3 short stories from your resume using the STAR method.
  • Know the numbers on your resume and how you got them.
  • Prepare 2 questions to ask the interviewer.

Skills interviewers often test

JavaSpring BootREST APIsSQLGitUnit testingMicroservicesDockerCI/CDData structures

Frequently asked questions

What is asked in a software engineer interview?

Role questions about your skills and past work, plus HR questions such as "Tell me about yourself" and notice period. See the list above.

How should a fresher prepare?

Freshers should lead with projects, internships and coding practice. Link a GitHub profile and name the stack used in each project.

What should I bring to the interview?

Copies of your resume, ID, certificates if asked, and a short list of questions for them.