What can I say? Their recruiter is nice, but good luck with the person who will interview you.

Different people will give you different feelings. For me, I was so unfortunate.

The interview was a mess. They told me there would be a two-hour interview: the first hour for technical skills and the second hour for system design. The first hour was fine, and the interviewee seemed happy. However, the person for the second hour showed up and asked me to do something similar to the first hour.

I asked, "Shouldn't this be a system design interview?"

That person seemed not to understand what I was talking about. Besides that, I was told there should be two people for the second hour, but only he showed up. During the interview, he wasn't listening most of the time, and his English was "limited" in explaining the questions. He purely repeated the question and couldn't find any other words than the question to help me understand it.

When it was close to the end, I asked him again, "Are you sure we are doing the right thing, since I was told this second hour is a system design interview?"

Then he flipped some papers and said something like, "Oops, looks like something's wrong. It's my fault, blah blah."

I felt they interviewed the wrong content with me. We then extended the interview by 20 minutes.

Several days later, I got a call saying they chose to move forward with other candidates. Come on, it was my second-to-last interview!

This is my worst interview experience from my total 8 years of SWE career. I hope the person interviewing you can understand English better and be more focused on you instead of doing something else most of the time and not caring about you.