Full Stack Developer Interview Questions

A Full Stack Developer is a web developer or engineer who works with both the front and back ends of a website or application—meaning they can tackle projects that involve databases, building user-facing websites, or even work with clients during the planning phase of projects.

Whether you're a job seeker preparing to be interviewed for the role of Full Stack Developer or an employer preparing to interview candidates for Full Stack Developer position, these Full Stack Developer interview questions will help you prepare yourself for the job interview session.

Full Stack Developer Interview Questions

Below are a list of some skill-based Full Stack Developer interview questions.

1. How long have you worked as a full-stack developer?
2. Do you have any technical certifications?
3. What technologies and programming languages do you require from start to finish for developing a project?
4. What programming language is your favorite to work with and why?
5. What is the most essential programming language for your job?
6. What backend scripting frameworks are you familiar with?
7. What Javascript frameworks are you familiar with?
8. What CSS frameworks are you familiar with?
9. What kinds of resources and programming languages do you need to start a development project from scratch?
10. What kinds of approaches do you use when initiating debugging?
11. Describe continuous integration.
12. How would you implement multi-threading into an application?
13. Can you describe some of the web applications you've developed in past projects?
14. Do you have management experience?
15. How can you reduce the load time for a web application?
16. What is long polling and why would it be beneficial to use?
17. What path or method would you use for writing an endpoint for verifying a resource's existence?
18. What's the biggest difference between GraphQL and REST?
19. Describe inversion of control in relation to the decoupling of layers and components within a system.
20. Describe your experience with creating a workflow in Gitflow.
21. How do you feel about directing a development team?
22. Have you ever completed projects using paired programming?
23. Describe a challenge you faced when working on a development project. How did you overcome it?
24. What is one contribution you've made in your past role that had a lasting impact on the organization?
25. Have you ever disagreed with a teammate? How did you handle it?
26. What coding projects are you currently working on?
27. What, in your opinion, is the most important quality in a full-stack developer?
28. How do you stay abreast of developments in the technology industry?
29. Describe a time when you made a mistake in your duties. How did you rectify it?
30. Can you mention an example as to when and how you have handled an inefficiency in the code of somebody else?
31. Explain the LAMP stack?
32. Explain the MERN stack?

Full Stack Developer Interview Questions and Answers

Every interview is different and the questions may vary. However, there are lots of general questions that get asked at every interview.

Below are some common questions you'd expect during Full Stack Developer interviews. Click on each question to see how to answer them.

1. What is Your Greatest Strength?
2. Tell Me About Yourself
3. What Is Your Greatest Accomplishment?
4. Why Do You Want This Job?
5. Are You a Leader or a Follower?
6. What is Your Salary Expectation?
7. What is Your Greatest Weakness?
8. Do You Have Any Questions for Us?
9. Why Do You Want To Leave Your Current Job?
10. Why Should We Hire You?