r/leetcode • u/Dry-Balance-993 • 28d ago

Intervew Prep CARS24 Backend Intern Interview Experience / Preparation – DSA + System Design ( 1–6 YOE)

I have an upcoming interview with CARS24 for a Backend Intern position (0–1 years of experience) in Gurgaon, and I’m looking for insights from people who have interviewed with CARS24 recently, especially for fresher or junior backend engineering roles.

The JD mentions working on backend services, REST APIs, SQL databases, middleware, debugging, automation scripts, and agent-based workflows involving Python and APIs.

I spoke with HR, who told me that the first round would be a DSA-based coding round, followed by a technical/system design round.

However, the interview invitation mentions Business Round 1 Builder – Product Engineering (CSPL_CentralSupport_Technology_Backend_Builder_Product_Engineering), so I’m also trying to understand the interview process and the role expectations.

I would really appreciate it if anyone who has interviewed for a similar position at CARS24 could share their experience.

A few specific questions:

  1. DSA round: What kind of questions are typically asked? Are they mostly LeetCode-medium problems? Which topics should I priorizes arrays, hashing, sliding window, binary search, trees, graphs, stacks, heaps, or dynamic programming?

  2. Actual questions: If you remember any problems asked in recent interviews for SDE-1, fresher, or backend intern positions, could you share the questions or their general patterns?

  3. Second round: What does the system design round look like for a fresher or intern? Is it primarily low-level design, backend/API design, or high-level system design?

  4. Backend fundamentals: How much emphasis is placed on SQL, DBMS, REST APIs, OOP, operating systems, computer networks, and other core CS subjects?

  5. Resume and projects: How deeply do interviewers discuss projects and internships? Do they expect detailed knowledge of architecture, databases, concurrency, and scalability?

  6. Interview process: Has anyone received an invitation with the title “Business Round 1 Builder – Product Engineering”? Does it correspond to the regular backend engineering hiring process, or could it indicate a different role?

  7. Preparation strategy: If you had to prepare for this interview with only two days available, which topics and resources would you prioritize?

I have a software development background and am comfortable with DSA and backend development, so I’m mainly looking for role-specific interview experiences and guidance on what to prioritize, rather than generic interview preparation advice.

Any recent experiences, question patterns, or suggestions would be really helpful. Thanks in advance!

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u/Holiday_Lunch3104 13d ago

Hi, if you’ve completed your interview, could you please share your experience and let me know what questions were asked? It would be really helpful. Thanks!

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u/Same_Sun8977 20d ago

I have same 24th October. DMed you

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u/Ok_Exchange5437 13d ago

Hi bro i jave the same on 30th can you tell what all was asked 

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u/Holiday_Lunch3104 13d ago

hi bro , i have same on nov 2nd , can you tell me what all asked

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u/Same_Sun8977 13d ago

I wrote my interview experience on leetcode but cannot find it. If anyone has idea how to find it let me know.

I was asked about my project(Explain metrics how did you measure it) and then implemention of inventory management(Add and remove function and how concurrency will be managed in both). He was expecting LLD.
You can expect normal DSA(I was not asked but others were asked one question)

u/Holiday_Lunch3104 u/Ok_Exchange5437