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Full Stack Engineer Interview Questions

Top Interview Questions for Full Stack Engineer

A Full Stack Engineer works with the Back End or the server portion of the application as well as the Front End, or client portion. They have skills in a broad variety of coding niches, from databases to UI/UX management.

The recent demand for Full Stack Developers has increased by over 30% in the past year.

Are you in a hurry to get started? Download the Full stack developer Interview Questions and Responses Toolkit.


Full Stack Engineer Hard Skills

Hard Skills

Use these questions to identify a candidate’s technical knowledge and abilities

Full Stack Engineer Soft Skills

Soft Skills

Use these questions to assess a candidate’s personality traits and cognitive skills

What to look for while interviewing for a Full Stack Developer?

Since the required skills for full-stack development are front-end technology, development languages, databases, servers, etc. Hence, look for a candidate who has an understanding of all these. 

Here are some skills to look out for when hiring a Full Stack Developer

Top Skills for Full Stack Developer

Role-specific skills to look for: Front-end Languages and Frameworks, Version Control, and Web Hosting Platforms

Soft skills to look for: Problem Solving, Analytical, and creativity skills. 

Pro Tip: Always screen before your interview. Use Online Assessment to screen applicants for a Full-stack engineer position before blocking your time for an in-person interview.

Questions to ask while interviewing a Full-stack developer  

We have compiled a set of questions with the help of 70+ hiring managers at different organizations.

Top Role-based interview questions for Full Stack Engineer

Top Role-based Interview Questions for Full Stack Engineer

What do you know about referential transparency?

Purpose of this interview question:

This question helps you in testing the candidate’s knowledge of different concepts of programming. 

What to listen for:

  • Listen for specific terms that explain the meaning of referential transparency. 

What tools do you use to test your code’s functionality?

Purpose of this interview question:

Testing code for functionality is extremely critical for this job role, and with this question, you can test if the candidate has knowledge of topics like this or not. 

What to listen for:

  • Top candidates will elaborate the topic by giving examples of their experience with the tools they prefer to use. 

Can you explain the Inversion of Control to us?

Purpose of this interview question:

The question is designed to test the candidate’s understanding of frameworks. Any software must have the knowledge of the majorly used frameworks for their job role.

What to listen for:

  • Listen for specific terms that explain the meaning and application of inversion of control.

How to screen Full Stack Engineer for soft skills

How to screen Full Stack Engineer for soft skills?

What are the most important qualities you think a Full Stack Developer must have?

Purpose of this interview question:

The question is designed to understand the scope of the candidate’s understanding of the requirement of skills and qualities for the position.

What to listen for:

  • An ideal answer would list out the top soft skills, experience, and knowledge required to become a full-stack developer.

Why do you think you’re a good fit for this company?

Purpose of this interview question:

The question is designed to know what skills the candidate is most confident about themself. 

What to listen for:

  • Top candidates will elaborate on how developed their skills are expressed on their resume, and how well can they articulate their value as a potential employee.

What are the technologies and languages you would need to develop a project from scratch?

Purpose of this interview question:

The question is designed to learn about the candidate’s preference for top technologies, languages, and tools.

What to listen for:

  • Candidates must concisely the reason for their choices and applications for the same. 

Start Optimizing your Full-Stack Developer Hiring today

Start Optimizing your Full-Stack Developer Hiring today

Find and hire talent with confidence. If your candidate doesn’t know the answer to the above questions and you’re hiring for a full stack developer position, then they’re obviously not a great fit.