I applied through my college's online job postings and heard back in about a week to set up an on-campus interview.

I was later contacted by HR to schedule a phone interview instead.

The phone interview was with a software developer and lasted about 40 minutes. He asked me various questions about OCaml.

There were many basic OCaml questions, such as "What is the type of List.fold_left"?

The harder ones were:

1. Describe how you would implement a garbage collection algorithm.
2. Describe why this algorithm for garbage collection does not work: Counter incremented when a pointer to the memory is created, and decremented when the pointer is removed. Deallocate when the counter is 0.