I recently gave the interview.

Round 1 - Design
Design a Flight Tracking System: You will get flight status updates, user can come ans search for a flight no. to know the status, data needs to captured like location, altitute, speed. Handle all the edge cases.

Round 2 - Problem Solving and Coding
Problem 1 - There are N employees and you have give K employees Calendar, Find all the conflicting slots for all the K employees. Try to do it in more optimized way.

Problem 2 - Given two string S1 and S2, how to find the diff. Something similar we see in the git diff.