Backend Developer at BharatPe

How it went

What they would tell you

How to prepare

Round by round

1. 1

   DSA60 min

   I solved a Sliding Window Maximum problem using a deque to keep track of maximums in O(n) time. For the Minimum Insertions and Deletions problem, I used a dynamic programming approach similar to Edit Distance to find the minimum operations.

   • Sliding Window Maximum
   • Minimum Number of Lines to Cover Points
2. 2

   System Design, Core Concepts60 min

   I shared insights from my work around API design, focusing on how adding pagination and filtering helps improve performance and scalability. I also highlighted my hands-on experience with monitoring tools like Grafana and NewRelic. We discussed GoLang, where I explained my understanding of GoRoutines and how they compare with Java threads and executors. I also talked about integrating Prometheus for effective monitoring of Go-based services. On the Spring Boot side, I talked about how dependency injection and the IoC container have simplified development for me, and why I prefer Spring Boot over traditional Spring Framework for its faster setup and production-readiness. Lastly, in the Low-Level Design discussion, I shared how I would design a scalable Notification Service that supports email, SMS, and push notifications, respecting user preferences and ensuring high availability.

What came up