Interview Questions

Why am I being asked this? What do they want to learn?


  • What excites you about coding?
  • Why do you want to code?
  • How do you want to improve?


  • Where do you go to find out more about coding (blogs/Hacker News/twitter) etc.?
  • What's your favourite blog?
  • Who do you look up to in the coding world?
  • What new languages/frameworks interest you?

Opinionated (but humble)

  • What is your favourite¬†programming language?
  • What do you like/dislike about Ruby/JS etc.?
  • What do you think about the move towards everything being in JavaScript?
  • Do you think there should be front-end/back-end or full-stack developers?
  • When have you realised you've made a mistake? How did you handle it?


  • Name a design pattern - how would you use it?
  • What does the Single Responsibility Principle mean?
  • What is encapsulation?
  • Why do we programme using TDD? What are the drawbacks?
  • What do we mean by DRY?
  • Why do we use MVC when building frameworks?¬†


  • How would you optimise a system that is running slow?
  • How would you identify bottlenecks in your system?
  • What is an n plus 1 problem?

Interview Questions

By Leo Allen

Interview Questions

Different types of interview questions

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