I applied through a recruiter. The process took two weeks.
The HackerRank technical assessment was very wordy for a technical exercise. Subjective questions like "how to scale a system" are best left to in-person interactions, as there are an infinite number of responses. If it were an essay-writing exam, it probably should be assessed as one, but it is assessed as a technical test. The assessment of the test is therefore very opinionated and ideological.
There was a 1-hour-and-30-minute technical assessment on HackerRank with one answer.
The following metrics were computed from 1 interview experience for the Xero Principal Data Engineer role in Toronto, Ontario.
Xero's interview process for their Principal Data Engineer roles in Toronto, Ontario is extremely selective, failing the vast majority of engineers.
Candidates reported having very negative feelings for Xero's Principal Data Engineer interview process in Toronto, Ontario.