Full stack javascript developer interview tactics

As a hiring manager or interviewer, it’s important to assess a candidate’s technical skills and experience in full-stack JavaScript development to determine their fit for the role. The following questions can help guide the interview process and evaluate a candidate’s knowledge and expertise in JavaScript, Node.js, Express.js, NoSQL databases, front-end frameworks such as React, Angular, or Vue.js, and more. Additionally, it’s important to gauge their problem-solving abilities and approach to application security and scalability. By asking these questions and closely evaluating the candidate’s responses, you can determine if they have the necessary skills and experience to succeed as a full-stack JavaScript developer.

Here are a few good starter interview questions for potential candidates in an interview:

  1. What is your experience with JavaScript and the different frameworks and libraries associated with it?
  2. Can you walk us through the development process of a full-stack JavaScript application?
  3. What is your experience with Node.js and Express.js, and how have you used them in previous projects?
  4. Can you explain the concept of RESTful APIs and how you have implemented them in the past?
  5. What is your experience with NoSQL databases, such as MongoDB, and how have you used them in your projects?
  6. Have you worked with React, Angular, or Vue.js? If so, which one and how have you used it in your projects?
  7. How do you ensure the security and scalability of your applications?
  8. Can you walk us through the deployment process of a full-stack JavaScript application?
  9. Can you give an example of a complex problem you solved in one of your full-stack JavaScript projects?
  10. How do you stay up-to-date with the latest developments in full-stack JavaScript development?

As a full-stack JavaScript developer, you will likely face a range of challenges as you build and maintain applications. Here’s a sample interview question to ask a candidate:

“Can you walk me through a recent technical challenge you faced while working on a full-stack JavaScript project, and how you overcame it?”

This question will give the candidate the opportunity to demonstrate their problem-solving skills, technical knowledge, and experience working with JavaScript in a full-stack development environment. As the interviewer, it is important to listen carefully to their response and ask follow-up questions to gain a deeper understanding of their experience and approach to solving problems. This can help you determine if the candidate has the skills and experience necessary to successfully perform the role of a full-stack JavaScript developer.


Another good interview strategy is to provide a set of requirements and have the candidate walk you through how they would build out the application.

Here is a set of requirements for an example application and an outline of how a candidate might build it:


  1. The application should be a simple to-do list manager that allows users to create, edit, and delete tasks.
  2. The application should have a clean, user-friendly interface.
  3. The data should be stored in a database and accessed using an API.
  4. The application should be built using JavaScript, HTML, and CSS.

Building the Application:

  1. Determine the technology stack: The candidate would need to decide which JavaScript framework and database to use for the project. They could choose a framework such as React or Vue, and a database such as MongoDB or Firebase.

  2. Plan the application architecture: The candidate would need to determine how the different parts of the application will work together and what the overall architecture will look like. They may need to create diagrams or flowcharts to help them visualize the process.

  3. Design the database: The candidate would need to determine the schema for the database and create the tables and fields that will be needed to store the data. They may also need to design any relationships or indices that will be necessary to support the functionality of the application.

  4. Create the API: The candidate would need to build the API that will allow the front-end to access the data stored in the database. They would need to decide on the endpoint structure and the methods that will be available (e.g. GET, POST, PUT, DELETE).

  5. Build the front-end: The candidate would need to build the interface for the application, using JavaScript, HTML, and CSS. They would need to make sure that the interface is user-friendly and easy to use. They may also need to build any necessary components, such as modals, to support the functionality of the application.

  6. Integrate the front-end and back-end: The candidate would need to integrate the front-end and back-end, making sure that the data can be seamlessly retrieved and saved to the database. They would also need to test the application to make sure that everything is working correctly.

  7. Deploy the application: Finally, the candidate would need to deploy the application, making it available to users. They would need to decide on a hosting platform and ensure that the application is properly configured and optimized for production use.

This outline provides a general idea of the steps a candidate might take to build the example application. The specific approach and tools used may vary depending on the candidate’s experience and the requirements of the project.



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