Codewave Technologies interview experience Real time questions & tips from candidates to crack your interview

Frontend Developer

Codewave Technologies
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1 rounds | 3 Coding problems

Interview preparation journey

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Application story
I was referred by a friend from the company Codewave. The opening was for a Frontend Developer role requiring proficiency in MERN technologies, and the position was based in Bangalore. During the interview, I was initially asked basic questions, followed by more in-depth questions on certain topics.
Preparation
Duration: 2 months
Topics: React.js, JavaScript, HTML, CSS, Context API, State Management, Basic DSA, Algorithms
Tip
Tip

Tip 1: Prepare React from the basics to the advanced.

Tip 2: Prepare JavaScript up to the advanced level.

Tip 3: Practice interview questions from Code360.

Application process
Where: Referral
Eligibility: BE/BTech in any branch, (Salary Package: 3 LPA)
Resume Tip
Resume tip

Tip 1: Include the skills mentioned in the job description.

Tip 2: Prepare a project summary for the projects listed in your resume.

Interview rounds

01
Round
Hard
Online Coding Interview
Duration50 minutes
Interview date25 Aug 2025
Coding problem3

1. React Concepts

  • Can React be used in production?
  • What are an accumulator and an aggregator in MongoDB?
  • What are functional components and class components in React? (Learn)
  • What is the Virtual DOM, and how does React use it? (Learn)
  • Explain React's rendering process. When does a component re-render?
  • What is useEffect? Explain its dependency array. (Learn)
  • What is CSR (Client-Side Rendering) vs. SSR (Server-Side Rendering)?
  • What is the difference between local state, global state, and derived state?
  • What is debouncing? Explain it with an example. (Learn)
  • Explain error boundaries in React.

2. React Counter

Build a small counter app using useState and useEffect.

3. Number Printing

Write the numbers from 11 to 67 without using a loop.

Here's your problem of the day

Solving this problem will increase your chance to get selected in this company

Skill covered: Programming

What is recursion?

Choose another skill to practice
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