Top 7 Full-Stack Developer Interview Questions and Answers

What Is a Full Stack Developer?

A full-stack developer is someone who is skilled in both frontend and backend web development. They are responsible for designing, developing, and implementing entire web applications. Full-stack developers must have a strong foundation in programming languages such as HTML, CSS, JavaScript, and SQL.

They should also be proficient in server-side languages such as PHP, Python, Ruby, and Java, and web frameworks such as Node.js, Django, and Laravel. Full-stack developers are highly flexible and can handle all aspects of web application development, from design to deployment.

It goes without saying that you answer these full interview questions honestly, but be sure to also do your research for the specific company you're interviewing for.

 Top 7 Full-Stack Developer Interview Questions and Answers

1. What is your preferred programming language?

Familiarize yourself with the company's programming languages, but first answer with your preference, whether it's Java, Python, or Ruby.

If the company uses a language that is not your favorite or less familiar to you, please indicate the extent of your knowledge and ability to learn new programming languages. Full-stack developers work with multiple languages.

The best examples are demonstrating your ability to work on the back end and designing web pages on the front end.

2. Can you define DevOps?

Although it's a relatively new term in IT, DevOps can be important to the company you're interviewing with. It is an exercise that involves collaborative work between development and IT departments to produce faster and more efficient results.

3. What is multithreading?

Multithreading is the process of increasing CPU performance by allowing multiple users to manage it simultaneously.

Multiple threads run simultaneously on the same program using the same processing power.

4. How to make a website as efficient as possible?

Several possible practices can increase the efficiency of the website. Asset optimization, reducing duplicate code, using browser caching, and reducing DNS lookups are some of the main ways to optimize a website.

5. Tell us what is CORS?

Full-stack developers should be familiar with CORS (Cross-Origin Resource Sharing), the process of accessing resources located outside of a given domain.

With CORS, the integration of web scripts with content outside the source domain can be easily implemented.

6. What is Continuous Integration?

Continuous integration is a practice in which full-stack developers apply specially designed and automated code for testing. This helps identify bugs and is done several times a day during testing.

7. When was the last time you coded?

A good programmer is always programming – think back to the last project you worked on and give your interviewer a full breakdown of the programming languages, processes, and methodologies you work with. This is your chance to showcase your expertise as a complete web developer.