Backend Engineer at WheelsEye

How it went

What they would tell you

How to prepare

Round by round

1. 1

   DSA Round 190 min

   The round started with a short introduction. The interviewer was polite and asked a few basic questions about the tech stack I’ve worked with earlier, just to understand my background. Soon after, we moved to coding questions. It was a sliding window question. I had solved it before, so I felt confident and completed it smoothly. After the round, I felt quite positive and thought I had done well. But when the feedback came, I saw that only one of my solutions had passed completely. The second one got only partial marks.

   • Minimum Window Substring
   • Kth Maximum Element
2. 2

   High-Level Design Round90 min

   This round was taken by SDE-3,and it was clear right from the start that he was very technically strong. We began with a deep dive into my past projects. The conversation got interesting when he asked why I picked certain technologies like MySQL instead of MongoDB, or Kafka over RabbitMQ. I also explained how I used Kafka Streams with binlogs instead of batch processing, and why that choice made sense in my use case.

3. 3

   Low-Level Design Round60 min

   I was asked to design a Hotel Management System that could handle multiple hotels, different room types, and manage concurrent room bookings. I began by explaining the overall structure using clear class diagrams, covering key components like Hotel, Room, Customer, and Booking. I made sure the design was modular and easy to scale if more hotels or room types were added later. To handle concurrent bookings, I walked through how the booking service would work and the kind of locking strategies.

4. 4

   Team Fit Round45 min

   This round was more of a conversation-style discussion than a technical deep-dive. It started with me sharing some of the technical challenges I’ve faced in my previous roles and how I handled them. We also talked about the scale I’ve worked on and the engineering practices I follow in day-to-day work including how I approach problem-solving.

5. 5

   Functional Fit + Values Round30 min

   This round focused on both technical mindset and business understanding. It started with a discussion around my past career decisions and then moved into the most business-impacting projects I’ve worked on so far. The interviewer asked me to share some problems I observed in my previous company and what I would do to fix or improve them. The overall aim was to understand how I think about product, business, and tech together, and how I approach building solutions that drive value.

What came up