Easy, not that hard and approachable in terms of questioning. Would be prepared for personality questions and being able to identify scenarios where you have overcome hurdles and grown from other experiences which feed into your work ethic.
Interview questions [1]
Question 1
What is the biggest hurdle you have overcome in your career so far?
I applied through other source. The process took 4 weeks. I interviewed at Red Hat
Interview
Processo lineare, uno screening al telefono, un colloquio con un HR, un colloquio con il CTO o un altro senior, colloquio con il product owner, ma poi mi hanno fermato lì
Initially had the recruiter screening, followed by 2 rounds. One with the Principal Engineer and the other with a Senior Manager. Both went well. Unfortunately, they moved with another candidate.
I applied online. I interviewed at Red Hat (Boston, MA)
Interview
Applied on LinkedIn. Contacted by tech lead a few weeks later for an interview. Video call interview (with someone other than the tech lead who contacted me) scheduled to last 30 minutes, ended up lasting about 45 minutes because I was having a good conversation with the interviewer.
Interview questions [1]
Question 1
Design a class in Python that efficiently stores a sparse vector.