Walmart Labs | Software Engineer - Big Data (IN3) | Bangalore | Feb 2021 [Offer] [Declined]
Anonymous User
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Status: 2Y 7M experience, Tier 2 College
Position: Software Engineer at a product based MNC
Date: Mar 2021

Round 1 - Technical - Programming

  • Introduction and project related discussions.
  • Given two linked lists where one of them meets the other at one point. Find the merging point.

Round 2 - Technical - Java, Big Data

  • Java based questions - Abstract vs Interface, String vs StringBuffer, Multithreading, JVM heap memory
  • SQL Queries (Joins, Group by, Window functions based) .
  • MR vs Spark
  • Partitioning vs Bucketing with use case

Round 3 - System Design

  • Design Arokya Setu app with Contact tracing feature and batch analytics

Round 4 - Hiring Manager

  • Big Data concepts and troubleshooting
  • Java Memory management and garbage collection
  • One programming question and complexity analysis
  • Behavioral questions

The entire process took a week and received the offer in two days. I declined it inspite of higher compensation as I had another offer with better role.

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