The interview process was two rounds. One person interviewed me regarding the backend, and the other interviewed me regarding the frontend.

Backend questions included, "What is your favorite data structure?" Of course, they expected me to say Hash Table and then asked how I would implement it. They also asked a sorting question, which I really wish I remembered.

Overall, the backend interviewers were very aggressive. They didn't ask any questions to get to know me; they just jumped straight into the code.

The frontend developer was a lot nicer. He started off with a CSS question: there was a picture in the room, and he asked how I would create it with CSS. Then, he followed it up with a JavaScript question, asking how I would write a function where, given the column and row number, I would be returned the appropriate box, similar to how Excel organizes its spreadsheets. (For example, if you were given row 1, column 1, you would get A1).

Write a function that, given the row and column numbers, returns the appropriate box in an Excel document.