The first technical interview was about an hour and was generic. It included simple questions about frontend and UI performance issues.

The second technical interview took an hour and a half and was about solving simple array algorithms. Write unit tests first to get some credit points.

First interview.

Q: Many simple frontend questions about how DOM works, CSS, etc. Q: Fix code that blocks UI from re-rendering (progress bar). Q: Implement debounce. Q: Implement Promise with meta code.

Second interview.

Q: Count pairs with a given sum in an unsorted array of integers. Q: Given a sorted array and a number x, find the pair in the array whose sum is equal to x.