I recently interviewed with Publicis Sapient for Senior Experience Engineer role. Here’s my experience and the questions asked in the 1st Round of Interview.

• Difference b/w Controlled and Uncontrolled Components in React?
• Create a form using Uncontrolled Components with fields username and password and a submit button, where on submit the values are logged to the console and the form fields reset (not the entire form)?
• Give Basic Css to the Form.
• What are the use cases of Uncontrolled Components?
• Given an API, render the data and add a dropdown with values asc and desc that passes the dropdown value as a query parameter to the API?
• Follow-up: sort the items in descending order on the basis of price?
• Have you worked with GraphQL?
• What State Management libraries have you worked with?
• Walk me through how you would set up Redux Toolkit in a React application.
• What are the different rendering methods in React that you are aware of?
• Difference b/w an SPA and MPA?
• Why does SPA not reload, while MPA does?
• How can you reduce the build size of a React application?
• What is the difference between useMemo and useCallback? Can you give me examples of their use cases from your past projects?
• What types of testing have you done in your applications?

Verdict - Cleared this Round.