I contacted the hiring manager over the phone, as suggested on the career opening page, and we talked a bit about my education and the courses I took.

He was easygoing, helpful, and really nice. Sorry, I forgot his name.

I had an interview within a week in the summer of 2016. You should review C and algorithms before going there.

I was good, but not good enough for what they were looking for. In the end, after they declined me, it turned out they thought I was applying for a full-time position. I was still a student searching for an internship, so I received an apology from the recruiter.

Palindrome.

Difference between a read-only character array and one allowing character manipulation.

Fibonacci.

Something with binary trees (algorithm question, complexity, etc.).