Initial phone screen with the team leader, and then a professional interview about python internals, focuses on how data structures are implemented etc... with an exercise that's not difficult. After that there is an HR interview for the final steps.
Sat down with one of the R&D managers in the company, vibed really well, and about a lot of interesting subjects about Linux specifically- describing how FSs work in the kernel level (I hadn’t read specifically about it but my intuition led me to the correct answer, which I assume is fine as well). Questions about high performance system design and how would I design a system that does this&that putting emphasis on speed. Finally a cute programming question (wrote with a paper and pencil) and learned a lot from it.
Not too easy and not insanely difficult, a great first interview.
Interview questions [1]
Question 1
How do file systems work from the moment you open a file handle?
I interviewed at VAST Data (Tel Aviv-Yafo) in Jan 2025
Interview
3 technical interviews and then a HR one. The first is with a team lead, then with a group lead and finally with the VP R&D. The HR interview is usual with it ending by asking for some recommendations.