I applied through LinkedIn and was shortlisted to take the HackerRank test. The test conducted on HackerRank was pretty easy and straightforward.

I was called onsite for a face-to-face interview. In contrast to what others have mentioned, I felt they were quite professional.

*** Round 1 ***

Question 1: Difference between XML and JSON Question 2: Determine if the given Queue is a circular queue. Question 3: Zig-zag traversal of a binary tree Question 4: Check for balanced parentheses in an expression Question 5: Missing number in an array consisting of numbers 1 to N Question 6: Write an SQL query demonstrating a self-referential join Question 7: WITH Clause in PL/SQL

*** Round 2 ***

Explain a scenario where you would use an interface. Explain a scenario where you would use an abstract class. File handling in Java. Design a daemon thread that polls a specific location on a server to check if a new log file has been created. If so, create an entry in the database.

*** Round 3 ***

Technologies used so far. AWS

Projects in the current organization