The whole process happened quickly. The 1st round technical discussion on data structures and algorithms. Then 2nd round technical discussion on data structures and algorithms , time complexity, optimizations. The 3rd round technical discussion on database concepts, handling huge data, design system.

The first round was done through Karat, which is a third party platform offers interview service. The first couple minutes asked simple python commands and what are the output, then followed by a easy-medium leetcode style question. Once the first question was finished, the interviewer posted another question which involves more complex algorithm of shortest path.