Five interviews in total, with four being technical. In general, these are simple computer science questions.

For the data engineer role, the interview is usually in Python. First, you have a screen interview, and then three to four onsite technical interviews.

Different people from the site conduct the interviews, so the questions asked may not be the same. The first two questions are asked by the Team Lead of Data Engineering.

Find the maximum depth in a binary tree.

Write code that determines if a string is a permutation of a palindrome.

Write an algorithm that checks the validity of brackets in a string.