Status: 2.9 years experience
Location: Gurgaon, India
Date: February 2026

First round:

DSA Problem : https://algomaster.io/learn/dsa/reconstruct-itinerary

Two SQL queries :

1. Return student with second maximum score
2. Given table students with date of scholarships, return all students who got scholarship on both 2025, 2026 year

Question : How hashmap works internally ?

Second round:

Design Notification System

• Discuss trade-offs,
• How to handle priority notifications,
• what if lot of notification requests arrive at a time

Third round:

Resume discussion
How can we close a thread gracefully ?
How hashmap works internally ?