General PSA: don’t apply for a job at Canonical. Do NOT apply for a job at Canonical. Treat the blatantly artificially enormous number of job openings they post as the mirages of trickster fae. They are unhinged. Mark Shuttleworth is unhinged. They will drag you through the mud, disrespect you and your time, and definitely not give you a job. This article I saw today is like the thirteenth of its kind that I personally have seen https://dustri.org/b/my-experience-with-canonicals-interview-process.html
My experience with Canonical's interview process

Personal blog of Julien (jvoisin) Voisin

@0xabad1dea it's gotta be a funny world inside that guy's head. "he asks about school because it's all we've got in common".

@dysfun @0xabad1dea let's come down to the choice of bread, because that's what we all have in common.

— Canonical probably