Garaaz interview experience Real time questions & tips from candidates to crack your interview
Fullstack Developer
Garaaz
2 rounds | 2 Coding
problems
Selected Interview preparation journey
Journey
I prepared for the interview by learning the MERN stack (MongoDB, Express.js, React, Node.js) through structured modules on Coding Ninjas as well as self-paced learning from YouTube tutorials. The combination of both platforms helped me build a stronger understanding — Coding Ninjas provided me with a clear roadmap, assignments, and guided problem-solving, while YouTube gave me additional practical projects, real-world examples, and debugging insights. I balanced both by practicing coding challenges, building small projects, and revising key concepts like APIs, authentication, database handling, and React component design. This mix of guided and self-learning ensured I was comfortable with both the fundamentals and applied aspects of full-stack development.
Preparation
Topics: MERN, CSS/HTML, JavaScript
Application process
Where: Coding Ninjas Placement Cell
Eligibility: B.E./B.Tech/M.E./M.Tech./BCA/MCA
Interview rounds
01
Round
Medium
Online Coding Interview
Duration
Interview date26 Apr 2025
Coding problem1
1. JavaScript, React, and Node.js Interview Questions
- Can you explain the JavaScript Event Loop and how it works?
- What are React component lifecycle methods and how do they work?
- How does the useEffect hook work in React, and where is the unmount clearing (cleanup) logic handled?
- What are some common Node.js interview questions you’ve faced?
- How is JavaScript different when running on the client side (browser) vs server side (Node.js)?
- How would you implement rate limiting in a Node.js backend application?
02
Round
Hard
Online Coding Interview
Duration
Interview date27 Apr 2025
Coding problem1
1. MongoDB Schema Update, Indexing, and Two Sum Problem
- Your schema is already in production. How would you add a new field (e.g., description) in a MongoDB collection without breaking the existing contract?
- Can you explain indexing in MongoDB and why it’s important?
- Solve the Two Sum problem: Given an array of integers and a target, return the indices of the two numbers such that they add up to the target.
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Skill covered: Programming
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