A recruiter reached out on LinkedIn. After a hiring manager call, some onsite interviews were scheduled. The questions were easy.

However, all the interviewers were super rude. They did not say hi or hello, nor did they ask if I needed a break. They just jumped straight to the questions.

I have never experienced anything like this. I would have discounted it as an anomaly if it had been just one interviewer. But, all of them were like this.

That tells a lot about the company culture. I rejected the offer because I could not see myself working with such a rude group of people (or in a company that tolerates such behavior).

Parsing a file was a design problem, one of your usual suspects. Nothing special in behavioral questions as well.